Questions Asked on
November 14, 2012

  1. Chemistry Help

    Write the net ionic equation for the reaction of calcium nitrate and sodium phosphate

    asked by Alex
  2. Physics

    A soccer ball kicked on a level field has an initial vertical velocity component of 15 meters per second. Assuming the ball lands at the same height from which it was kicked, what is the total time the ball is in the air? [Neglect friction.]

    asked by Shannon
  3. math

    The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $960/person/day if exactly 20 people sign up for the cruise. However, if more than 20 people sign up (up to the maximum capacity of 100) for the cruise, then each fare is

    asked by Britney
  4. 7th grade math Ms. Sue please

    1. Rename four-sevenths as a percent. Round to the nearest tenth of a percent if necessary. (1 point) 47% 1.8% 57.1% 28% 2. Rename .709 as a percent. (1 point) 709% 70.9% 79% 7.09% 3. If one-third is equivalent to 33thirty-three and one-third%, what

    asked by Delilah
  5. English

    In the story Sunjata... Why do the sorceresses agree to kill Sunjata? A.Sunjata declined his father's cows. B.Sunjata had befriended Jelimusoni Tunku Manyan Diawara. C.Dankaran Tuman's offer was better than Sunjata's. D.Dankaran Tuman had promised them a

    asked by Deborah
  6. 7th grade math Ms. Sue please check

    1. Rename four-sevenths as a percent. Round to the nearest tenth of a percent if necessary. (1 point) 47% 1.8% 57.1% 28% 2. Rename .709 as a percent. (1 point) 709% 70.9% 79% 7.09% 3. If one-third is equivalent to 33thirty-three and one-third%, what

    asked by Delilah
  7. 7th grade math quick please

    Mrs. Miller sells a house for $179,000. If she earns a commission of 6%, how much money does she earn? Write a proportion and show your work.

    asked by Delilah
  8. earth

    HELP? Two students are given cubic boxes, measuring 10 cm on a side. Robert puts a single glass marble with a diameter of 10 cm in the box. Susan puts 1,000 1-cm glass marbles in her box. 1.Whose box has more empty space? Explain. 2.Whose box will be

    asked by Andrea
  9. Math for Ms. Sue Or Steve

    Use an equation to solve the problem. 1. What is 57% of 11? a. 11 = 0.57 • n; 19.3 b. n = 57 • 11; 627 c. n = 0.57 • 11; 6.27*** d. 11 = 57 • n; 0.19 2. 224 is 25% of what number? a. 224 • 0.25 = w; 560 b. 224 = 0.25 • w; 896 c. 224 • 0.25 =

    asked by Jman
  10. algebra

    The table shows the amount of milk that Wisconsin dairy farms produced from 1940 to 1997. Use linear model to estimate milk production in 1990. year milk produced 1940 7 1972 7 1997 8 15.1 12.5 7.5 2.5

    asked by deidra
  11. Statistics

    A major department store chain is interested in estimating the average amount its credit card customers spent on their first visit to the chain's new store in the mall. Fifteen credit card accounts were randomly sampled and analyzed with the following

    asked by Melanie
  12. Grammar

    Which of the following is a complex sentence? A.After the class, we all went to Alec's house. B.Alec's brother John was home, but his sister Cynthia wasn't. C. Alec suggested we all go to the neighborhood pool. I'm thinking the answer is A, but I'm not too

    asked by Anon
  13. English - Ms. Sue

    I hope you know this story.. Sunjata... Why do the sorceresses agree to Sunjata's offer? A.They like him better than Dankaran Tuman. B.Their real desire was for meat. C.They prefer antelope to bull meat. D.Sunjata was the son of a Condé woman. I think it

    asked by Deborah
  14. chem

    Given the concentrations, calculate the equilibrium constant for this reaction: I2(g) + Cl2(g)---> 2ICl(g) At equilibrium, the molar concentrations for reactants and products are found to be I2 = 0.50M, Cl2 = 0.60M, and ICl = 5.0M. What is the equilibrium

    asked by byke
  15. statistics

    A researcher reports an F-ratio with df = 2, 36 from an independent-measures research study. Based on the df values, how many treatments were compared in the study and what was the total number of subjects participating in the study? a. 2 treatments and 37

    asked by Robbie
  16. Difficult Trig Word Problem

    The displacement of a spring vibrating in damped harmonic motion is given by y(t) = 4e^-3t sin(2pi*t) where y = displacement and t = time with t greater than/equal to zero. Find the time(s) when the spring is at its equilibrium position (y=0). The number

    asked by Greg
  17. Physics

    An aluminum bar has the desired length when at 10 degrees Celsius. How much stress is required to keep it at this length if the temperature increases to 33 degrees Celsius?

    asked by Bobby
  18. SOCIAL STUDIES

    WHICH OF THE FOLLOWING STATEMENTS SUPPORTED BY THE INFORMATION IN THE MAP 1] AUSTRASLIA IS SELF-SUPPORTING IN OIL.2]AFRICA TRADES OIL ONLY WITH SOUTH AMRICA.3] THE SOVIET UNION HAS TRADE ROUTES WITH EVERY MAJOR CONTINENT.4] ALL OF THE MAJOR CONTINENTS HAVE

    asked by stephanie
  19. math

    Suppose the total cost function for manufacturing a certain product C(x) is given by the function below, where C (x) is measured in dollars and x represents the number of units produced. Find the level of production that will minimize the average cost.

    asked by Britney
  20. Pre-Algebra

    A bag contains 10 white golf balls and 6 striped golf balls. A golfer wants to add 112 golf balls to the bag. He wants the ratio of white to striped golf balls to remain the same. How many of each should he add?

    asked by Joe
  21. algebra

    Wind farms are a source of renewable energy found around the world. The power P(in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v(in meters per second) If a turbine generates 500kW in a 10m/s wind, how much power

    asked by deidra
  22. Quantitative Analysis

    The dibasic compound B (pKb1 = 4.00, pKb2 = 8.00) was titrated with 1.00 M HCl. The initial solution of B was 0.100 M and had a volume of 100.0 mL. Find the pH at the following volumes of acid added and make a graph of pH versus Va; Va=0, 1, 5, 9, 10, 11,

    asked by Missy
  23. chemistry

    A 94.7 g sample of silver (s= 0.237 J/(g x Degree C)), initially at 348.25 Degrees C , is added to an insulated vessel containing 143.6 g of water (s=4.18 J/(g x Degree C)), initially at 13.97 Degrees C. At equilibrium, the finial temperature of the

    asked by marcus
  24. algebra

    which polynomial has a graph that passes through the given points? (-3,10),(-1,0),(0,-5),(3,52). y=x^3-4x^2+2x-5 y=x^3+4x^2-2x-5 y=x^3+4x^2+2x-5 y=x^4+4x^3-2x^2-5x If someone could walk me through I'd be thankful

    asked by deidra
  25. physic

    a ball rolls off a desk at a speed of 3.0m/s and lands 0.40 seconds later. How far from the base of the desk does the ball lands?

    asked by sharmaine bell
  26. Calculus

    A wire 4 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total

    asked by Bob
  27. chemistry

    When 50.0mL of 1.20 M of HCl (aq)is combined with 50.0mL of 1.30 M of NaOH (aq) in a coffee-cup calorimeter, the temperature of the solution increases by 8.01 Degrees C. What is the change in enthalpy for this balanced reaction? HCl(aq) + NaOH(aq)

    asked by marcus
  28. English - Ms.Sue

    Hopefully you know the story "from Sunjata".... What saves Sunjata in the end? A.his popularity B.God's blessing C.his generosity D.his friendship with a sorceress I think it's B....?

    asked by Deborah
  29. Chemistry

    How many Moles of solute particles are present in 1 mL of aqueous 0.070 M (NH4)2CO3? ____ mol of Particles

    asked by Kristen
  30. Chemistry

    The question representing the production of tetraphosphorus trisulfide (P4S3), a substance used in some match hears, is 8P4 + 3S8 ---> 8P4S3. Determine if each of the following statements is correct. If the statement is incorrect, rewrite it to make it

    asked by Montanna
  31. social studies

    which of the following statements is supported by the information in the map please help

    asked by michelle
  32. Chemistry

    What is the total volume of gases produced at 819 K and 1. atm pressure when 320 g of ammonium nitrite undergoes the following decomposition reaction? NH4NO2 --------> N2(g) + 2H2O(g)

    asked by Sarah
  33. statistics

    An analysis of variances produce SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15. For this analysis, what is the F-ratio? a. 30/60 = 0.50 b. 60/30 = 2.00 c. 15/4 = 3.75 d. 4/15 = 0.27

    asked by Robbie
  34. chemistry

    a chemist puts 6 moles of nitrogen gas and 7 moles hydrogen gas into an evacuated 1 liter container. The system reaches equilibrium at a certain temperature according to the process outlined above. when the system is at equilibrium the chemist determines

    asked by hannah
  35. Physics

    The brakes of a truck cause it to slow down by applying a retarding force of 8740 N to the truck over a distance of 1130 m. What is the work done by this force on the truck?

    asked by Emily
  36. Stoichiometry

    How many grams of oxygen are required to completely burn 85.6 grams of methane (CH4)? CH4 + O2 → H2O + CO2

    asked by Mike
  37. chemistry

    At constant pressure and 25 degrees C, what is delta H for the reaction 2C2H6(g) + 7O2(g) --yields-- 4CO2(g) + H2O(l) if the complete consumption of 11.3 g of C2H6 releases -586.3 kJ of heat energy? (11.3=.38 mol C2H6)

    asked by marcus
  38. Social Studies

    I was wondering if I could check my answers with someone. I'm a bit confused with interest. I put stars next to the answers I chose. Thank you. An interest rate is a special type of (1 point) loan. **price. bank. service. 2. How does a compound interest

    asked by Greg
  39. Pre-Algebra

    A bag contains 10 white golf balls and 6 striped golf balls. A golfer wants to add 112 golf balls to the bag. He wants the ratio of white to striped golf balls to remain the same. How many of each should he add?

    asked by Anonymous
  40. Math

    The weekly demand for the Pulsar 25-in. color console television is given by the demand equation p=-0.05x+502 (0(less than or equal too)x(less than or equal too)12,000) where p denotes the wholesale unit price in dollars and x denotes the quantity

    asked by Britney
  41. Physics

    Lead has a density of 11300 kg/m^3 at 0 degrees celcius. What is the density of lead at 90 degrees celcius?

    asked by S
  42. math

    Paul is making loaves of raisin bread to sell at a fundraising event. The recipe calls for 1/3 cup of raisins for each loaf, and Paul has 3 1/4 cups of raisins a) How many loaves can Paul make? b) How many cups of raisins will he have left over? Go step by

    asked by jordon
  43. physics

    A satellite has a mass of 106 kg and is located at 1.96 106 m above the surface of Earth. (a) What is the potential energy associated with the satellite at this location? J (b) What is the magnitude of the gravitational force on the satellite? N

    asked by heather
  44. algebra

    what is a quartic function with only the two real zeros given x=5 and x=1 y=-x^4-6x^3+6x^2-6x+5 y=x^4+6x^3-6x^2-5 y=x^4-6x^3+5x^2-6x+6 y=x^4-6x^3+6x^2-6x+5 can someone explain

    asked by lee
  45. algebra

    find all zeros of the equation -3x^4+27x^2+1200=0 If someone could explain it would be helpful

    asked by jayson
  46. Chemistry

    A 100.0 mL aliquot of 0.100 M weak base B (pKb=5.00) was titrated with 1.00 M HClO4. Find the pH at the following volumes of acid added Va= 0, 1, 5, 9, 9.9, 10, 10.1, and 12mL

    asked by Missy
  47. Stats

    About 35% of the population has blue eyes (based on a study at Indiana University). a. If someone is randomly selected, what is the probability that he or she does not have blue eyes?

    asked by Yolanda
  48. chemistry

    An ideal gas is allowed to expand isothermally from 2.00 L at 5.00 atm in two steps: a) against a constant external pressure of 3.00 atm, followed by b) against a constant external pressure of 2.00 atm. Calculate q and w. (101.33 J = 1 L atm)

    asked by ace
  49. algebra

    a polynomial equation with rational coefficients has the roots 7+sgrt3, 2-sgrt6 find two additional roots 7-sgrt3, 2+sgrt6 3-sgrt7, 6+sgrt2 7+sgrt3, 2-sgrt6 3+sgrt7, 6=sgrt2 could someone help

    asked by lee
  50. physics

    A 2.25 kg ball experiences a net force of 965 N up a ramp. Once the ball reaches the top of the ramp, the force no longer acts. The force acts over a distance of 1.50 m on the ramp. Find the horizontal distance x that the ball travels before it hits the

    asked by Anonymous
  51. Vocab2

    A group that has exclusive business rights and titles. A. Company B. Corporation C. Investment D. Proprietorship I say b

    asked by Emi
  52. Physics

    A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s?

    asked by Bryan
  53. Physics

    Two astronauts, each having a mass M are connected by a length of rope of length d have a negligible mass. They are isolated in space, orbiting their center of mass at an angular speed of ù0. By pulling on the rope, one of the astronauts shortens the

    asked by Alphonse
  54. Chemistry

    An unknown gaseous hydrocarbon consists of 85.63% carbon by mass. A 0.335 g sample of the gas occupies a volume of 0.107 L at STP. What is the identity of the gas?

    asked by Sarah
  55. physics, help! urgent!

    A positive point charge q = +2.50 nC is located at x = 1.20 m and a negative charge of ƒ{2q = ƒ{5.00 nC is located at the origin. (a) Sketch the electric potential verses x for points on the x-axis in the range -1.50 m < x < 1.50 m. (b) Find a symbolic

    asked by Ella
  56. physics

    A helicopter hovering above a forest fire dumps a large bucket of water. How far does the water fall during the third second?

    asked by andy
  57. Vocab

    Basing the Results on Probability A. Calculation B. Abstraction C. Classification D. Relation I am saying calculations

    asked by Emi
  58. algebra

    Can someone please explain and help me with this problem. 4. The table shows the annual consumption of cheese per person in the United States for selected years in the 20th century. Year Pounds Consumed 1908 5.027 1923 8.768 1960 12.29 1981 15.485 What

    asked by lee
  59. math

    The daily total cost (in dollars) incurred by Trappee and Sons for producing x cases of TexaPep hot sauce is given by the following function. c(x)=0.000002x^3+3x+453 (a) Find the average cost function C. C = ? (b) Find the level of production that results

    asked by Britney
  60. MATH

    A box with an open top has vertical sides, a square bottom, and a volume of 4 cubic meters. If the box has the least possible surface area, find its dimensions. Length of base= Height=

    asked by Jim
  61. SOCIAL STUDIES

    WHICH OF THE FOLLOWING STATEMENTS IS BEST SUPPORTED BY THE NEW STUDIES

    asked by stephanie
  62. english

    Choose the word needing an apostrophe or an apostrophe and an s. If the sentences is correct, choose no error. 1. Why havent you dotted your j’s? haven’t **** j’s’ no error 2. Ounce for ounce, humans aren’t as strong as most insects. human’s

    asked by jayson
  63. 7th Grade Math help ASAP only 2 questions

    I have absolutely no idea what these questions are. Can you help? And can you tell me how to solve them? thanks. 6. The bill at a restaurant is $58.50, and Mrs. Johnson wants to leave a 15% tip. Approximately how much money should she leave? (1 point)

    asked by Delilah
  64. physics HELPP!!!!!!!

    A beam resting on two pivots has a length of L = 9.00 m and mass M =89.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance 4.00 m from the left end exerts a normal force n2. A woman of mass m=

    asked by anon
  65. Chemistry

    A solution has a %T value of 75.4% at 600 nm. What is the absorbance of this solution at this wavelength?

    asked by Gabby
  66. 7th grade math correct 2 and help 1

    6. The bill at a restaurant is $58.50, and Mrs. Johnson wants to leave a 15% tip. Approximately how much money should she leave? (1 point) about $15.00 about $9.00 about $6.00 about $11.00 8. What percent of 50 is 12.5? (1 point) 4% 25% 40% 15% 9. 50 is

    asked by Delilah
  67. Chemistry

    a diver exhales a bubble with a volume of 250 mL at a pressure of 2.4 atm and a temperature of 15 degrees celcius. What is the volume of the bubble when it reaches the surface where the pressure is 1.0 atm and the temperature is 27 degrees celcius

    asked by Lauren
  68. Calculus

    If an object is moving along the curve y=x^3, at what points is the y-coordinate changing 3 times more rapidly then the x-coordinate?

    asked by Daniella
  69. Chemistry

    Calculate delta H for the reaction below using Hess's Law: C2H6 ---> C2H2 + 2H2 ------------------------------------------ C2H2 + 5/2O2 --> 2CO2 + H2O (H = -1300 kJ) 2H2 + O2 --> 2H2O (H= -572 kJ) 2C2H6 + 7O2 --> 4CO2 + 6H2O (H= -3120 kJ)

    asked by Gabby
  70. Calculus

    The velocity of a particle moving along the x-axis is given by f(t)=6-2t cm/sec. Use a graph of f(t)to find the exact change in position of the particle from time t=0 to t=4 seconds.

    asked by James
  71. PHYSICS

    The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -72°C to +38°C. (a) How much does the steel pipeline expand due to the difference in temperature? (The coefficient of

    asked by Sarah
  72. math

    Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of $5 per bottle. However, the profit from each bottle beyond 9600 drops by $0.0002 for each additional bottle sold. Assuming at

    asked by Britney
  73. Algebra/Math

    A total of 504 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold . How many adult tickets were sold?

    asked by Brittany
  74. Intro to Physics

    An air bubble has a volume of 1.65 cm3 when it is released by a submarine 105 m below the surface of a lake. What is the volume of the bubble when it reaches the surface? Assume the temperature and the number of air molecules in the bubble remain constant

    asked by Madison
  75. Chemistry

    A weak acid HA (pKa = 5.00) was titrated with 1.00 M KOH. The acid solution had a volume of 100.0 mL and a molarity of 0.100 M. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.

    asked by Missy
  76. PHYSICS

    Lead has a density of 1.13 104 kg/m3 at 0°C. (a) What is the density of lead at 86°C? ___kg/m3 (b) Based on your answer to part (a), now consider a situation in which you plan to invest in a gold bar. Would you be better off buying it on a warm day? Yes

    asked by Sarah
  77. Math

    A fly starts out 2 meters from a light bulb, flies closer to the light then farther away, 2 meters again. At this point the fly goes toward the bulb again but hits the bulb and flies away. Find a function (it may be piecewise) that gives the distance of

    asked by Neelambari
  78. Physics

    A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s?

    asked by Bryan
  79. statistics

    An analysis of variance is used to evaluate the mean differences for a research study comparing three treatments with a separate sample of n = 6 in each treatment. If the data produce an F-ratio of F = 4.10, then which of the following is the correct

    asked by Robbie
  80. Chemistry

    A 5.0g KBr sample, at 25 degrees celsius, dissolved in 25 ml of water, also at 25 degrees celsius. the final equilibrium temperature of the resulting solution is 18.1 degrees celsius, What is the enthalpy change in J/g and KJ/mole of KBr.

    asked by jonathan
  81. statistics

    For an independent-measures ANOVA comparing three treatments with a sample of n = 5 in each treatment, what is the critical value for the F-ratio using α = .05? a. 3.88 b. 3.49 c. 3.74 d. 3.34

    asked by Robbie
  82. Problem solving

    Look at the number 13,15,19,25 Describe the pattern.

    asked by Nick
  83. PHYSICS

    An air bubble has a volume of 1.65 cm3 when it is released by a submarine 105 m below the surface of a lake. What is the volume of the bubble when it reaches the surface? Assume the temperature and the number of air molecules in the bubble remain constant

    asked by Sarah
  84. math

    The quantity demanded each month of the Sicard wristwatch is related to the unit price given by the equation below, where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how many watches must be sold? (Round

    asked by Renee
  85. Vocab1

    Practices by a certain group of people A. Customs B. Beliefs C. Traditions D. Norms Can someone please help!!

    asked by Emi
  86. SOCIAL STUDIES

    WHICH STATEMENTS BEST SUMMARIZES THE PARAGRAPH'S MAIN POINT? PLEASE

    asked by stephanie
  87. SOCIAL STUDIES

    WHICH OF THE FOLLOWING STATEMENTS IS SUPPORTED BY INFORMATION IN THE MAP 1] THE U.S GOVERMENTS WET TO WAR WITH FRANCE IN 1803 TO GAIN TERRITORY WEST OF THE MISSISSIPPI RIVER.2]IN 1865 THE U.S ECONOMY PRODUCED RAW MATERIALS TO BE EXCHANGED ABROAD FOR

    asked by stephanie
  88. chemistry

    consider the following changes at constant temperature & pressure H2O(s) --yields-- H20(l); Delta H1 H2O(l) --yields-- H2O(g); Delta H2 H2O(g) --yields-- H2O(s); Delta H3 Using Hess's law, the sum of the deltas is a. equal to 0 b. sometimes greater than

    asked by marcus
  89. SOCIAL STUDIES

    WHICH ONE OF THE FOLLOWING CONCLUSIONS IS SUPPORTED BY THE RESULTS OF THESE STUDIES PLEASE HELP ME

    asked by stephanie
  90. Physics

    A 1000 kg car traveling at 72 km/h strikes a concrete wall and comes to a full stop in 2 sec. What is the average force of impact exerted on the car?

    asked by Yanely
  91. physics

    Use the data of this table to find the point between Earth and the Sun at which an object can be placed so that the net gravitational force exerted by Earth and Sun on this object is zero.

    asked by monic
  92. Chemistry

    At 22C(Celsius) an excess amount of a generic metal hydroxide M(OH)2 is mixed with pure water. The resulting equilibrium solution has a pH of 10.14. What is the Ksp of the salt at 22C? Help Please

    asked by Anonymous
  93. science

    15. Two 5 dm3 flasks are connected by by a narrow tube of negligible volume. Initially the two flasks are both at 27 oC and contain a total of 2 moles of an ideal gas. One flask is heated to a uniform temperature of 127 oC while the other is kept at 27 oC.

    asked by mahatta
  94. Math

    If exactly 198 people sign up for a charter flight, Leisure World Travel Agency charges $308/person. However, if more than 198 people sign up for the flight (assume this is the case), then each fare is reduced by $1 for each additional person. Hint: Let x

    asked by Renee
  95. Chemistry

    50mL of water at 46.9 degrees Celsius were mixed with 50mL of water at 25.2 degrees Celsius in a calorimeter also at 25.1 degrees Celsius. the final temp was 30.1 Celsius. assuming that neither the desity of water nor its specific heat capacity changed

    asked by romeena
  96. Intro to Physics

    The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -72°C to +38°C. (a) How much does the steel pipeline expand due to the difference in temperature? (The coefficient of

    asked by Madison
  97. PHYSICS

    The average coefficient of volume expansion for carbon tetrachloride is 5.81 10-4 (°C)−1. If a 42.5-gal steel container is filled completely with carbon tetrachloride when the temperature is 10°C, how much will spill over when the temperature rises to

    asked by Sarah
  98. 7th grade math

    The following proportion could be used to change from gallons to which measure. 1 3 customary capacity: - = - 1 Gallon=4 quarts 4 X 1 Gallon=128 fluid ounces 1 quart=2 pints 1 pint=2 cups 1 cup=8 fluid ounces A. ounces B. pints C. quarts D. gallons

    asked by kitty kat
  99. Chemistry

    A 3.80 L cylinder contains 6.83g of methane, CH4, at a pressure of 3320 mmHg. What is the temperature of the gas? I know you use the formula PV= nRT, but I can't seem to get two sides equal each other, thus having the wrong temp. My guess is that I have to

    asked by Sarah
  100. math

    Phillip, the proprietor of a vineyard, estimates that the first 9600 bottles of wine produced this season will fetch a profit of $5 per bottle. However, the profit from each bottle beyond 9600 drops by $0.0002 for each additional bottle sold. Assuming at

    asked by Ashley
  101. Calculus

    One ship is 20 miles due North of another ship, and is sailing South at the rate of 10 miles per hour. The second ship sails West at the rate of 20 miles per hour. For how long will the ships continue to approach each other?

    asked by JP
  102. subtraction (math)

    How do you find 81 - 16 using mental math?

    asked by jp
  103. PHYSICIS ELENA PLEASE HELP

    A beam resting on two pivots has a length of L = 9.00 m and mass M =89.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance 4.00 m from the left end exerts a normal force n2. A woman of mass m=

    asked by kl
  104. PHYSICS

    At what temperature would the rms speed of a nitrogen atom equal the following speeds? (Note: The mass of a nitrogen atom is 2.324 10-26 kg.) (a) the escape speed from Earth, 1.12 104 m/s _____K (b) the escape speed from the Moon, 2.37 103 m/s _____K

    asked by Sarah
  105. Physics

    If 9.30 x 10^5 J of energy are transferred to 2.00kg of ice at 0 deg C, what is the final temperature of the system?

    asked by S
  106. chem

    Among the elementary subatomic particles of physics is the muon, which decays within a few nanoseconds after formation. The muon has a rest mass 1.126 109 times that of a proton. Calculate the de Broglie wavelength associated with a muon traveling at a

    asked by Samantha
  107. Algerbra 1

    You have a coupon for $50 off your camera purchase of $100 or more at Zeke's Camera World. Write a function relating a camera's purchase price, y, to the retail price, x. Give the domain of this function.

    asked by janet
  108. physics

    a steel ball rolls with a constant velocity across a tabletop 0.91 m high. it rolls off the table and hits the ground 0.77 m from the edge of the table. how fast was the ball rolling?

    asked by Stevens
  109. Stats

    I have a test on this tomorrow and I swear he didn't teach this and the book's not helping either, so maybe u can: A hwy engineer knows that his crew can lay 5 miles of hwy on a clear day, 2 miles on a rainy day, and only 1 mile on a snowy day. Suppose

    asked by Jessica
  110. the parts of speech

    10. In the following sentence, identify the part of speech of the italicized word. Catching fish is one of the oldest pastimes.

    asked by gloria
  111. physics 100

    What minimum speed does a 160 puck need to make it to the top of a 5.4 -long, 24 frictionless ramp?

    asked by rob
  112. Chemistry

    What is the wavelength in Angstroms of radiation that has a frequency of 4.00 x 10^14 s-1? I tried the equation wavelength= constant / frequency. And the fact that 1 Angstrom = 1x 10^-10 m, but I don't see how the correct answer turns out to be 7.5 x 10^3

    asked by Sarah
  113. chemistry

    The standard molar heat of fusion of ice is 6020 J/mol. Calculate q, w, and ∆E for melting 1.00 mol of ice at 0◦C and 1.00 atm pressure.

    asked by ace
  114. Analytic Geometry

    Please help. I've been trying to solve these for more than an hour now but I can't seem to get it. 1) The segment joining (-4,7), (5,-2) is divided into two segments, one of which is 5 times as long as the other. Find the point of division. 2) The segment

    asked by Amber
  115. MATH

    A SCHOOL IS DIVIDED INTO 4 HOUSES P,Q,R,S. ON SPORTS DAY,STUDENTS LINE UP SO THAT A STUDENT FROM P IS FIRST IN LINE,THEN A STUDENT FROM Q THEN A STUDENT FROM R THEN A STUDENT FROM S THEN A STUDENT FROM P AND SO ON WITH SAME ORDER REPEATING .FROM WHAT HOUSE

    asked by wan
  116. Physics - Bernouli

    Water flows with constant speed through a garden hose that goes up a step 20.0 cm high. 1. If the water pressure is 143 kPa at the bottom of the step, what is its pressure at the top of the step? Now suppose the cross sectional area of the hose at the top

    asked by Chong
  117. Physics

    The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -72°C to +38°C. (a) How much does the steel pipeline expand due to the difference in temperature? (The coefficient of

    asked by Madison
  118. algebra

    Write the expression in a single natural logarithm. 3 ln a - 0.5 (ln b + ln c^2)

    asked by wouldntyouliketoknow
  119. Physics

    Block A of mass 2.0 kg and Block B of 8.0 kg are connected by a spring of spring constant 80 N/m and negligible mass. The system is being pulled to the right across a horizontal frictionless surface by a horizontal force of 4.0 N, with both blocks

    asked by Alexa
  120. Chemistry

    Which two types of steel appear to have their properties combined in tempered steel?

    asked by Anonymous
  121. math

    If Rhonda buys six 12-packs of fruit snacks for $14.40 how much does each fruit snack cost?

    asked by Anonymous
  122. physics

    A dentist's drill starts from rest. After 2.50 s of constant angular acceleration it turns at a rate of 3.0 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this

    asked by monic
  123. statistics

    Which of the following is NOT true with respect to the properties of probability? 0 < x < 1 P(S) = 1, where S is the sample space P(A) + P(Ac) = 0 If two events are independent then P(A and B) = P(A) * P(B)

    asked by joey
  124. Chemistry

    What is the energy in Joules of a mole of photons of microwave light having a frequency typical of microwave? (frequency = 3.0 x 10^9 Hz) I tried using the equation E= h x frequency, but I ended up with the answer 1.98 x 10^-24 instead of the correct

    asked by Sarah
  125. physics

    A hockey puck with mass 0.160kg is at rest on the horizontal, frictionless surface of a rink. A player applies a force of 0.310N to the puck, parallel to the surface of the ice, and continues to apply this force for 1.60s. What is the (a)position and

    asked by Force and direction
  126. Chemisty 20

    A sample of water was known to contain chloride ions. To determine the concentration of chloride ions in the water sample, a student added a solution of silver nitrate to 500mL of the water. 1.26g of silver chloride percipitate formed. What was the

    asked by James
  127. chemistry

    How many molesof NaOH are present in 17.0ml of 0.250M NaOH

    asked by Anonymous
  128. math

    how do you write the number words for 0.03. Is it three hundredths.(2)and the number words for 0.76,is it seven tenths,six hundredths

    asked by zack
  129. Physics

    A golf club strikes a 0.061-kg golf ball in order to launch it from the tee. For simplicity, assume that the average net force applied to the ball acts parallel to the ball’s motion, has a magnitude of 7760 N, and is in contact with the ball for a

    asked by Emily
  130. Grammar

    Prepositions show a spacial, time, or logical relationship between the subject of the preposition and the rest of the sentence. A) True B) False AnswASer B

    asked by Marie
  131. Physics

    a car that weights 15000 N is initially moving at 60 km/hour when the brakes are applied. The car is brought to a stop at 30 meters. Determine the magnitude of the braking force

    asked by Gloria
  132. Math

    A line horizontally drawn from the center of the circle. A. Radius B. Axiom C. Circumference D. Vertex I chose a and I was told I was wrong Help please

    asked by Emi
  133. calculus

    A five feet piece of wire is cut into two pieces. One Piece is bent into a square and the other is bent into an equilateral triangle. Where should the wire be cut so that the total area enclosed by both is minimum.

    asked by Kyle
  134. Math

    The largest multi-story building built by the Anasazi Indians called the Pueblo Bonito. The shape of its foundation is nearly parabolic, with a base (at the top of the photo) of about 500 feet and a height of about 300 feet. 1. Sketch the multistory

    asked by Mike
  135. grammar

    The patient was placed in the wheelchair with the fractured tibia. A Verb tense agreement error B Subject/verb agreement error C Pronoun agreement error D Modifier placement error E Parallel structure error My answer is c

    asked by Marie
  136. algebra

    Can someone please explain What polynomial has a graph that passes through the given points? (–4, 89), (–3, 7), (–1, –1), (1, –1), (4, 329) y = 2x3 – 3x2 – 2x + 1 y = 1x4 – 2x3 – 3x2 + 2x + 1 y = x4 – 2x3 + 3x2 + 2x – 1 y = x4 + 2x3

    asked by lee
  137. Math

    Write an algebraic expression to represent the cost of a concert ticket,h, with a service charge of $6.75.

    asked by Gio
  138. Math

    Write an algebraic expression to represent the cost of m gallons of gasoline if each gallon costs $1.45 Is this right M-$1.45

    asked by Gio
  139. business statistics

    Assume that X is a binomial random variable with n = 5 and p = 0.35. Calculate the following probabilities?

    asked by Alicia
  140. Punctuation

    He rode his bike to Bellevue, Washington in less than two hours. Is this correctly punctuated?

    asked by Marie
  141. Chemistry

    You are asked to prepare a temperature bath that freezes at -25 degrees C, using only water and ammonium sulfate. a. How many grams of ammonium sulfate would you need to prepare this bath if you start with 500 grams of water? b. What would the boiling

    asked by Robin
  142. English

    i doing a compare/contrast essay on character h olden frm novel i read and hamlet. for my thematic statement, do i just talk about one theme or like a mixture of things they've gone through? also what i name this essay? something that fit both characters?

    asked by Mohammad
  143. Physics. Please please help!

    A charge Q = +4.5 uC is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge q = +8.0 uC is released from rest at point A on the x-axis at x = 2.0 cm. The small object moves without friction along the

    asked by Kyle
  144. biology

    9. A certain radar installation transmits electromagnetic radiation with a wavelength of 2.5 cm. What is the frequency of this radiation? 10. For the radar in #9 above, how many seconds will it take for a signal to reach an airplane 15 km away, and return

    asked by doranda
  145. English

    1. He is riding a horse. 2. He is riding on a horse. 3. He has to ride a taxi. 4. He has to ride on a taxi. 5. He has to ride in a taxi. 6. He will ride a bus. 7. He will ride on a bus. 8. He will ride in a bus. 9. He will ride the subway. 10. He will ride

    asked by rfvv
  146. chemistry

    2. When 0.354 g of an unknown nonelectrolyte compound was dissolved in 12.5 g of benzene a solution was formed that froze at 4.46°C. (a) Calculate the molar mass of the unknown compound. The freezing point of benzene is 5.48°C, and the Kf of benzene is

    asked by Helen
  147. Chemistry

    calulate the molality of solution that contains 51.2g C10H10 in 500mL of CCl4. the density of CCl4 is 1.6g/mL

    asked by EM-EM
  148. Physics Word Problem

    using Snell's Law (sin(theta1)/sin(theta2) = v1/v2 where (theta1) is the angle of incidence and (theta2) is the angle of refration. The number V1/V2 is called the index of refraction. The index of refraction from air to water is 4/3. If a ray of light

    asked by Jeremy
  149. Statistics

    When testing H0: σ12 = σ22 vs. Ha: σ12 ≠ σ22 two random samples of sizes 10 and 8, respectively, are used. The calculated value of the test statistic is found to be equal to 2.22. Which of the following statements is true? a. H0 must be rejected at

    asked by Melanie
  150. Finance

    Arena Distributors is a new company and currently pays no dividends. The company has just reported earnings of $1.5 per share and its earnings are expected to grow at a 15 percent annual rate over the next four years. Following this four-year high growth

    asked by Dan
  151. physics

    A certain light truck can go around a flat curve having a radius of 150 m with a maximum speed of 34.0 m/s. With what maximum speed can it go around a curve having a radius of 60.0 m?

    asked by heather
  152. Physics

    A shell is fired from the ground with an initial speed of 1.72 103 m/s at an initial angle of 40° to the horizontal. a) Neglecting air resistance find the horizontal range b) Find the amount of time the shell is in motion

    asked by Jacob
  153. Chemistry

    balloon is filled with 1.35 atm dimethyl ether gas and 5.25 atm of oxygen gas at 27 C degrees. They react: C2H6O (g) + 3O2 (g) --> 2CO2 (g) + 3H2O(g) The system is allowed to cool back down to 27 degrees Celsius following the reaction. assuming external

    asked by Anonymous
  154. Physics

    Runner A is running at a constant rate of 2.3 m/s when he passes runner B who is stationary. Runner A continues running at a constant pace, and Runner B begins to run 4 seconds after Runner A just passes him. If Runner B is accelerating at a rate of .5

    asked by Jared
  155. Chemistry

    How do you balance the equation? MnO4^-1(aq) + C2O4^-2(aq)-> Mn^+2(aq) + CO2(g)

    asked by Cris
  156. algebra

    In ten years a child will be 3 years older than twice her current age. What is the current age of the child

    asked by Anonymous
  157. Physics

    If each tire of an automobile has an area of .026 square meter in contact with the ground, the weight of the automobile is 26,000 N, what is the pressure in the tires? Please show work.

    asked by Bobby
  158. Grammar

    Choose the correctly punctuated sentence: A) I am sorry to say, however, that I am not looking forward to the holidays. B) I am sorry to say however that I am not looking forward to the holidays. C) I am sorry to say, however that I am not looking forward

    asked by Marie
  159. math

    Paul is making loaves of raisin bread to sell at a fundraising event. The recipe calls for 1/3 cup of raisins for each loaf, and Paul has 3 1/4 cups of raisins a) How many loaves can Paul make? b) How many cups of raisins will he have left over? Go step by

    asked by Paul
  160. Math

    What is another way to write the expression 44n? 44÷n?

    asked by Joe
  161. math

    Which of these expressions is equivalent to 11(10 – 8p)? A 880p . B 110 – 88p . C 110 – 8p . D 22p . E 2p

    asked by Anonymous
  162. physics

    A hot rod of mass 1600 kg, starting from rest reaches a speed of 170 m/s in only 10.1 s. What is the average output power? 1. 0.226644 MW 2. 0.0013332 MW 3. 2.28911 MW 4. 4.57822 MW 5. 0.0269307 MW

    asked by Anonymous
  163. math

    write the number in standard notation 1.42 * 10 to the -2 power

    asked by destiny
  164. Algebra 1

    Christopher orders a 3 topping pizza for $15.25 and a 5 topping pizza for $17.75. Write and solve a system of linear equations to find the price of a plain pizza( no toppings) and the cost of each topping.

    asked by janet
  165. physics

    The equation of motion for an oscillator is given by y= (0.200cm)sin (140t). What are the 1)alplitude, 2)period, and 3) frequency of this motion?

    asked by Jason
  166. AP Physics B

    If the system shown in Figure P8.29 is set in rotation about each of the axes mentioned in problem 29, find the torque that will produce an angular acceleration on 1.5 rad/s2 in each case.

    asked by Rochelle
  167. Grammar

    Choose the correctly punctuated sentence: A) Taylor will sell the tickets for the ball game and Danielle will assist her. B) Taylor will sell the tickets for the ball game, and Danielle will assist her. C) Taylor will sell the tickets for the ball game,

    asked by Marie
  168. Physics Word Problem

    using Snell's Law (sin(theta1)/sin(theta2) = v1/v2 where (theta1) is the angle of incidence and (theta2) is the angle of refration. The number V1/V2 is called the index of refraction. The index of refraction from air to water is 4/3. If a ray of light

    asked by Jeremy
  169. Intro to Physics

    At what temperature would the rms speed of a nitrogen atom equal the following speeds? (Note: The mass of a nitrogen atom is 2.324 10-26 kg.) (a) the escape speed from Earth, 1.12 104 m/s ___________K (b) the escape speed from the Moon, 2.37 103 m/s

    asked by Madison
  170. chem

    A solution is prepared by dissolving 25 grams of sodium sulfate in enough water to give a total volume of 500. mL. The molar mass of sodium sulfate is 142 grams per mole. What is the molarity of the solution?

    asked by jennifer
  171. chemistry

    The problem statement, all variables and given/known data When 5.00 g of NaOH(s) are added to 100 g of water using a calorimeter (with Cp = 493.24 J/K), the temperature rises from 25.0 to 37.5 °C. Calculate the molar heat of solution.

    asked by fufi
  172. Chemistry

    A solution has a %T value of 75.4% at 600 nm. What is the absorbance of this solution at this wavelength?

    asked by Gabby
  173. Physics

    An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground

    asked by Erika
  174. Grammar

    Periods are used to separate clauses. A) True B) False Answer A

    asked by Marie
  175. physics

    An electric motor rotating a workshop grinding wheel at a rate of 9.80 101 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.00 rad/s2. (a) How long does it take for the grinding wheel to stop? s (b)

    asked by monic
  176. math

    a mystery number is bigger than 50 and larger than 100. you can make exactly five different rectangles with the mystery number of tiles. its prime factorization consists of only one prime number. what is the number

    asked by tom
  177. science

    what is a form of energy that is always transferred from a warmer substance to a cooler one?

    asked by mitchell
  178. math

    what two simpler problems can you use to find 9x38

    asked by cj
  179. math

    in words explain how to simplify,ratios,and common denomerators.use each metod to comper 3/4 and 9/12.explain the proses in words. im desperet my homework is due fraiday november 16,2012.

    asked by estrella davila
  180. physics

    134 g of water at 7°C is added to ice at 0°C. If the final temperature of the system (which you can assume is isolated) is 0°C, determine HOW MUCH ICE MELTED. The specific heat of water is 4186 J/kg·°C. The latent heat of fusion for H2O is 335,000

    asked by Joseph
  181. Intro to Physics

    (a) An ideal gas occupies a volume of 3.0 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. _____________molecules (b) If the pressure of the 3.0-cm3 volume is reduced to 2.4 × 10−11 Pa (an extremely good

    asked by Madison
  182. physics

    An object is located 16.8 cm in front of a convex mirror, the image being 11.5 cm behind the mirror. A second object, twice as tall as the first one, is placed in front of the mirror, but at a different location. The image of this second object has the

    asked by derek
  183. physics HELPP!!!!!!!

    A 6.00 kg mass is connected by a light cord to a 1.00 kg mass on a smooth surface as shown in the figure. The pulley rotates about a frictionless axle and has a moment of inertia of 0.400 k∙m2 and a radius of 0.700 m. Assuming that the cord does not slip

    asked by anon
  184. Physics

    A uniform 2.20 kg sign of height 0.600 m hangs freely from a frictionless pivot. (Its extension into the page is irrelevant: treat it as a thin uniform rod of ‘length’ 0.600 m, pivoted about one end.) You throw a point-like 0.248 kg snowball at the

    asked by Alphonse
  185. Science

    Use the terms atom and element to explain what makes silver and gold different

    asked by Anonymous
  186. algebra

    find a quadratic equation with roots -1+4i and -1-4i If someone could explain it would help me understand

    asked by jayson
  187. Science

    If a dog chases a cat and the cat ran faster up a flight of stairs, can you conclude that the cat has more power.

    asked by madhu
  188. physics

    a nasty little boy tries to drop a water balloon from the top of a 20 m tall building so it lands next to and splashes an innocent woman standing on the ground below. how long does the woman have to get out of the way?

    asked by Matt
  189. Math

    Michaels car has a 18.0 gallon tank. If the tank has 5.5 gallons what fraction of the tank is full?

    asked by George
  190. Punctuation

    Is this punctuated correctly? The skin was prepped with Betadine, the wound closed in layers, and Steri-Strips applied.

    asked by Marie
  191. Physics

    A bolt requires 15 Nm or torque to loosen it. How much force needs to be applied to a 20 cm long wrench to loosen the bolt? Assume the force is applied perpendicular to the handle of the wrench.

    asked by Josh
  192. Physics Please Help!!

    Two speakers, A and B, are emitting identical, synchronized (in-phase) sound waves at 240kHz. A person standing a point C hears a relatively loud sound. She then starts walking towards point D, and notices the sound gets quieter, reaching a minimum when

    asked by Mike
  193. Math

    Help!!! On a blue print scale 1/2 inch = 10 feet. How do I figure out the actual width of the living room whose distance is 3/4 inches

    asked by Celeste
  194. seience

    a cell is to tissue as a ____is to a ____because

    asked by taliah
  195. 5th grade math

    On a balance scale 5 books on one side of the scale balance with 3 books and half a pound weight on the other side. All of the books weigh the same amount. How much does each book weigh.

    asked by Anonymous
  196. PHYSICS

    One mole of oxygen gas is at a pressure of 5.25 atm and a temperature of 29.5°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? ____°C (b) If the gas is heated so that both the pressure and volume

    asked by Sarah
  197. Grammar

    A person as young as _________ should not have problems with ovarian cysts. A) her B) herself C) she I answered B but feel it could be A

    asked by Marie
  198. statistics

    Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the

    asked by joey
  199. physics

    Consider an old-fashion bicycle with a small wheel of radius 0.15 m and a large wheel of radius 0.8 m. Suppose the rider starts at rest, accelerates with a constant acceleration for 2 minutes to a velocity of magnitude 12 m/s. He maintains this velocity

    asked by Captain Jack
  200. sci

    The degree of intense A. Intensity B. Measurement C. Potential Energy D. Electricity I say B

    asked by Emi
  201. chemistry

    Consider the conditions listed in the table below. Gas Temperature Pressure H2 100 oC 1 atm CH4 100 oC 20 atm O2 373 K 1 atm CO2 373 K 10 atm Which describes the characteristics of these samples? I. All molecules have the same kinetic energy II. The

    asked by ...
  202. History

    Why might a president's legislative proposal receive strong public support from around the nation yet still encounter opposition in Congress?

    asked by Jonathan
  203. math

    one band has 30 speakers. they stack them at least 3 high, but no taller than 8 high. what are all the different arrays they can make?

    asked by Anonymous
  204. 7th grade math

    The following proportion could be used to change from feet to which measure. 1/12 = 2/x customary length: 1 mile=1760 yards 1 mile=1285280 feet 1 yard=3 feet 1 foot=12 inches A. ounces B. pints C. quarts D. gallons

    asked by kitty kat
  205. Pre-Calculus

    The angle θ is in the second quadrant and tan θ = -3/5. Point P is on the terminal arm of angle θ/ Which is a possible coordinate for P? A) (-5,√29) B) (-3,√29) C) (-10,6) D) (-6,10) I drew the triangle, and aren't the coordinates supposed to be

    asked by Shreya
  206. childcare

    In which of the following ways do the Montessori organizations differ from the other accrediting groups you learned about in your study unit?

    asked by Anonymous
  207. Science

    A car of mass 1190 kg is on an icy driveway inclined at an angle of 28◦ If the incline is frictionless, what is the acceleration of the car?

    asked by Brett
  208. American History

    1. Believing that truth is what works for actual real people, Harvard psychologist William James developed the philosophy of (A. pragmatism.) B. social progressivism. C. radical progressivism. D. social idealism. 2. Which of the following was true of

    asked by Andrea
  209. math 1

    The average of 10 numbers is 12. If one number is removed, the average is 11. What number is removed?

    asked by MNHS
  210. English

    Posted by John on Wednesday, March 19, 2008 at 3:08pm. 1. He is average height. 2. He is medium height. Are both grammatical? •English expression - Writeacher, Wednesday, March 19, 2008 at 3:21pm He is of average height. He is medium in height.

    asked by rfvv
  211. math

    Thom measures the length of his skateboard in millimeters and in centimeters. will there be more millimeters or centimeters. explain?

    asked by mythreyee
  212. chemistry

    calculate the mass of naso4 needed to prepare of 0.5L of 0.15M of solution

    asked by elissa
  213. college algebra

    q(x)=3x^2-11x-4/5x^2-16x-16 what are the oblique horizontal vertical asyptote

    asked by zach w
  214. number problem

    The units digit of a 2 digit number exceeds thrice the tens digit by 1. The sum of the digits is 9. Find the number.

    asked by MNHS
  215. Chemistry

    Which two types of steel appear to have their properties combined in tempered steel?

    asked by Anonymous
  216. Language

    What part of speech are the following words this, of, books, sighed, heavily, doctor,ask, you, address, auscultated, are, bruits, read, last, and, my, will follow up, yesterday, tomorrow, gift, call it, present, always, on

    asked by Jo
  217. Grammar

    A sentence will still make sense if you leave out an essential phrase. A) True B) False I answered B

    asked by Marie
  218. statistics

    what is the probability of winning a lottery with 8 numbers drawn from 52 numbers (assume you buy 1 ticket)?

    asked by amanda
  219. Grammar

    Choose the correctly punctuated sentence: A) I understand Anne that you really don’t care about hurting my feelings. B) I understand, Anne, that you really don’t care about hurting my feelings. C) I understand, Anne that you really don’t care about

    asked by Marie
  220. Chem help asap

    A 890 mL NaCl solution is diluted to a volume of 1.15 and a concentration of 8.00 . What was the initial concentration? How do I go about this? M1V1=M2V2? and if it is how do I replace the variables?

    asked by Whitney
  221. Writing-Introduction

    Usually when you write an introduction, after you finish, do you indent or skip a line to start a new paragraph for the body.

    asked by Celest
  222. Grammar

    Choose the correctly punctuated sentence: A) My birth mother, Mrs. Mom, was a great cook. B) My birth mother Mrs. Mom was a great cook. C) My birth mother, Mrs. Mom was a great cook. I answered C

    asked by Marie
  223. Math

    55+x=4(7+x)

    asked by Anonymous
  224. Math

    First period: 85, 83, 74, 70, 88,95,89,72,90,83,77,91,98,89,82,84 Second period: 95,89,82,81,72,69,100,97,75,91,82,79,96,81,80,95,89,97,83,71 Mark is a student in the first period class. His score on the exam was 95%. Zoe is a student in the second period

    asked by Angie
  225. Science

    What is the scientific name of tiger

    asked by Santanu
  226. physics HELPP!!!!!!!

    Two astronaut, as shown in the figure, each having a mass of 88.0 kg, are connected by a 10.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 6.00 m/s. By pulling on the rope,

    asked by anon
  227. 5th grade math

    In the Finn family each girl has the same number of brothers as sisters. Each boy has twice as many sisters as brothers. How many children are in the family?

    asked by Anonymous
  228. college algebra

    F(X)= -3x^2 -30x-70 what is the vertex what is the axsis of symmetry what are the intercept what is the domain what is the range intervals increase intervals decrease

    asked by zach w
  229. Science 8R - Ms. Sue Please Help!!!!

    Homework - Draw a picture of an atom is there any pictures of an atom I can easily draw, please help

    asked by Laruen
  230. Grammar

    Pronouns are used to make sentences shorter, less redundant, and less confusing. A) True B) False I answered A A common noun is capitalized, and a proper noun is not. A) True B) False Answer B

    asked by Marie
  231. math

    do not know how to get answer on kathleen spent $30.50 on two shirts. One shirt cost $3.50 more than the other. How much did each shirt cost?How do you get the answer for X +X+3.50 = 30.50. Trying to explain how to get answer to a 5th grader.

    asked by Anonymous
  232. Grammar

    An adjective cannot tell which one, what kind, or how many. A) True B) False Answer B The predicate is the thing or person a sentence is about, and the subject tells something about the predicate. A) True B) False Answer A

    asked by Marie
  233. Re: Plant biology

    I'm doing a writing assignment on plant stress physiology. The stress that I chose to research was heat stress. One of the things that I have to do is describe at least 3 experiments that I plan to perform (hypothetically speaking, of course). At least one

    asked by Victoria
  234. social studies

    Squanto was poisoned by the Wampanoag, some people believed at that time. On the way back home from the Wampanoag he became sick and got a fever. He bleeded from his nose and he died. (What does 'poisoned' mean here? Did he drink a poisoned beverage? Or

    asked by rfvv
  235. math

    a mystery number is bigger than 50 and larger than 100. you can make exactly five different rectangles with the mystery number of tiles. its prime factorization consists of only one prime number. what is the number

    asked by tom
  236. PHYSICS

    15.0 moles of an ideal gas, at an initial pressure of 3.50 x105 N/m2 and an initial volume of 1.200 m3, undergo a small isothermal expansion to a volume of 1.220 m3. Find the work done by the gas.

    asked by Emma
  237. English

    Average Sized Paragraph on Cal Hockley (Titanic)? Could you include some of these? Who are they (Background) What they look like There personality Relationships with other characters How others feel about him You could discuss the film techniques James

    asked by Katie!
  238. Grammar

    Choose the correct sentence A) The patient is a 13-year-old female weighing 100 pounds who has a sprained wrist. B) The patient is a 13-year-old female with a sprained wrist weighing 100 pounds. I answered A

    asked by Marie
  239. IT 235

    Post your response to the following questions: For which types of image creations might it be beneficial or necessary to add text? Which text effects do you like to use? How will your final project include text?

    asked by Samantha
  240. Chemistry Help

    Write a balanced equation for the reaction between an aqueous solution of calcium nitrate being mixed with an aqueous solution of sodium phosphate Identify the precipitate.

    asked by Dan
  241. Art

    How can I describe a ceramics art piece? Is there certain words i should use?

    asked by rebecca
  242. physics

    michael starts at x=3 m and travels to the right at a constant 6 m/s for 2 s. he then slows down at a constant rate, coming to rest at 4 s after beginning to slow. A) what is michael's position when t=4 s.? C) What is Michael's velocity when t=4 s? d) What

    asked by Brianna
  243. Science

    Does boron react with anything?

    asked by Jerald
  244. chemistry

    a tank contains helium gas at 490 mmHg, nitrogen gas at 0.75 atm, and neon at 520 torr. What is the total pressure in atm?

    asked by Lauren
  245. problem solving

    a pound of aluminum may be used to make 29 aluminum cans. there are 240 pounds of aluminum in a 3,000 pound car. how many aluminum cans could be made from the aluminum in a,3,000 pound car? please help solve the problem.

    asked by stephie 2
  246. physics

    The equation of motion for an oscillator is given by y= (0.200cm)sin (140t). What are the 1)amplitude 2)period, and 3)frequency of this motion?

    asked by Jason
  247. math equation

    A chef is preparing a recipe for an upcoming banquet. Normally, he uses 10.25 mL of water, but today, he is using 112.75 mL of water. By how many times did the chef need to increase the recipe? Is this right?? i = variableE Equations 10.25i / 10.25 =

    asked by Brian
  248. edmondson

    In which of the following ways do the Montessori organizations differ from the other accrediting groups you learned about in your study unit?

    asked by Anonymous
  249. Physics

    A 50.0 Kg ball rolling at 10.0 m/s eastward (on a frictionless surface) collides with a 20.0 Kg ball rolling westward at 20.0 m/s. After the collision the two balls stick together (coalesce). What is the momentum after the collision?

    asked by Erika
  250. math

    in words explain how to simplify,ratios,and common denomerators.use each metod to comper 3/4 and 9/12.explain the proses in words. im desperet my homework is due fraiday november 16,2012.

    asked by estrella davila
  251. Physics

    Steam of mass 11.0 g at 100°C is added to 114.8 g of ice at 0.00°C. Find the final temperature of the system.

    asked by Joseph
  252. Physics

    A uniform 5.32 kg solid sphere of radius 0.344 m that is free to roll on a horizontal surface has a light axle passing through its diameter as shown. The axle is connected to a like yoke and in turn a light rope as shown. A constant tension of 7.81 N is

    asked by Alphonse
  253. Science

    Intensity of the HeNe laser (lambda = 632nm) was measured at 2 distances: 1m and 200m from the laser. The meter reading was 10W and 1W correspondingly. How many photons/sec will enter your eye if you look into the laser from 1m? From 2m? Assume that radius

    asked by Bill
  254. physics, help urgent!

    charge Q = +4.5 ƒÝC is located at the origin and is fixed so that it cannot move. A small object with mass m = 2.0 g and charge q = +8.0 ƒÝC is released from rest at point A on the x-axis at x = 2.0 cm. The small object moves without friction along the

    asked by Brette
  255. statistics

    Fruit flies which were heterozygous for both autosomal dominant traits aristapedia (Ar) and star eyes (S) were mated. Since aristapedia and star eyes are both lethal when homozygous and unlinked, one would predict ratio of 4:2:2:1 for Ar-S to Ar to S to

    asked by miguel
  256. Chemistry

    When 5.00 g of NaOH(s) are added to 100 g of water using a calorimeter, the temperature rises from 25.0 to 37.5 °C. Calculate the molar heat of solution. NaOH(s)--->Na(aq)+OH(aq) Assume that the specific heat capacity of water is 4.18 J/gK and that of the

    asked by FIrst_lady
  257. Precalculus

    Prove or disprove cos(x+y)cos(x-y)=cos squared (x) - Sin squared (x) I dstributed the cosines and attempted to cancel out terms but I can't get the signs right. Any help on what I am missing?

    asked by Greg
  258. chemistry

    (a) Calculate the molar mass of the unknown compound. The freezing point of benzene is 5.48°C, and the Kf of benzene is 5.12 °C/Molal. Show your work

    asked by Helen
  259. chemistry

    Consider an insulated system containing 150 g of liquid water and 150 g of ice at equilibrium under atmospheric pressure. A total of 22g of steam at 120◦C is admitted to the system. What is the phase composition and temperature when equilibrium is

    asked by ace
  260. MATH

    N = 0.03X - 58.59

    asked by Anonymous
  261. Psychology

    I am doing a journal review paper. What are the implications of this work (i.e. what light does it shed on the particular topic related to psychology)? I do not understand the question. What is it asking me to do?

    asked by Ana
  262. english

    1. He is of average height. 2. He is around average height. 3. He is a little below average height. 4. He is over average height. 5. He is of much more average height. 6. he is a little average in height. 7. He is more average in height. (Are they all

    asked by rfvv
  263. math

    -6+5x=8x-9

    asked by brittney
  264. Math

    Is a bar graph better than a pictograph to display data? Explain.

    asked by Emily
  265. Chemistry

    What mass of oxygen is required to burn completely 1.oo L of a mixture that is 90 % gasoline(d= 0.782 g/mL) and 10% ethanol (d=0.789 g/mL)by volume?

    asked by Shelly Theresse
  266. English

    1. Plants grow in earth. 2. Plants grow on earth. 3. Plants grow in the earth. 4. Plants grow on the earth. (Which ones are correct? What does #1 mean? Does #i mean that plants grows under the earth?)

    asked by rfvv
  267. Physics

    An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground.

    asked by Erika
  268. Grammar

    With plans for a large family party to celebrate his coming retirement.” is a A) Fragment B) Sentence I answered A

    asked by Marie
  269. math((PLEASE HELP!))

    5-3r=-37 r= ? x/8+10=13 x= ?

    asked by Emily
  270. Math

    Find the point on the line 1x+7y-4=0 which is closest to the point (-4,-6)

    asked by Bob
  271. biomechanics

    calculate the following body segment parameters for the thigh of a subject with a height of 180cm and mass of 72kg a) segment mass b) segment length c) centre of mass position relative to proximal end d) radius of gyration about proximal end e) Moment of

    asked by dmkp
  272. Grammar

    Between the mother and __________, there was already a long history of addiction problems. A) he B) him C) himself I answered B

    asked by Marie
  273. biomechanics

    A subject with a height of 165cm and mass of 69 kg is sitting with his lower limb positioned with hip in 90 degree of flexion and knee in full extension and foot in 90 degree of dorsiflexion a) calculate the inter-segment force at the knee joint

    asked by dmkp
  274. subject verb agreement

    which verb is correct. 1.Historical fiction (is, are) make-belive stories based on real events or people. 2. An example of historical fiction (is, are) the novel Ben and Me. 3. The main characters (is, are) Bem Franklin and a mouse named Amos.

    asked by robin
  275. statistics

    Which of the following defines the probability of an event A, or P(A)? The probability of A equals 0.50. The probability of A equals the number of possible outcomes in the sample space divided by the number of outcomes favorable to A. The probability of A

    asked by georgina
  276. statistics

    If you roll a fair die 100 times and 35 of the rolls result in a six, what would be the probability of the outcome of a 2, P(2)? P(2) = 0.02 P(2) = 2 P(2) = 35 P(2) = 0.35

    asked by georgina
  277. math

    given the digits 0,1,2,3,4,5,6, and 7 find the number of possibilities in each category four digit numbers, odd three digit numbers and three digit numbers without repeating digits.

    asked by Andrew
  278. math

    8x+6=3(4-x)

    asked by brittney
  279. problem solving

    there are 118 ridges around the edge of a dime. key has $5 in dimes. how many ridges,are there in all of kellys dimes combined? please solve. thanks

    asked by stephie 21
  280. Chemistry

    If pH = 6.6, calculate the molar concentration of H^ + (aq) in the solution.

    asked by Josh G.
  281. maths

    if the number of daily customers served by a restaurant increased from 160 to 208,what was the percent increase?

    asked by alexander
  282. Math

    How do I find the measurement of side CDin the quadrilateral WVUT if the midpoints are F,E,D,C and WU =45 in. and TV = 31 in.?

    asked by Catherine
  283. math

    4(1/2x+1/2)=2x+2

    asked by brittney
  284. English

    Are there any words that end with "ale" or "ail" that is a place?

    asked by Emma
  285. Punctuation

    Is this punctuated correctly? Martin Smith, CPA, MBA, is my accountant.

    asked by Marie
  286. Physics

    In a quality control test a steel ball with mass M falls a distance of H and bounces off a steel plate and through a hole in the wall into the ok bucket. If the ball bounces up a distance of 9/10H after hitting that plate and has a velocity of Vo at point

    asked by Ami
  287. Fractions

    Solve by drawing a diagram. A Tour bus travels 7 1/2 mi south, 3 1/2 east, 4 1/3 mi north, and 11 1/2 mi west. How far has the tour bus traveled when it crosses its own path?

    asked by Tony
  288. Finance

    Seven years ago a semi-annual coupon bond with a 10% coupon rate, $1,000 face value and 15 years to maturity was issued by Corn Inc.. Teddy bought this bond two years ago when the market interest rate was 12%. And now the market interest rate is 5%. If

    asked by Dan
  289. statistics

    The following data set gives FICO credit scores of a sample of 40 mortgage applicants to a local bank. (Note that the scores are in increasing order for your convenience.) 444, 497, 502, 517, 532, 559, 568, 598, 611, 636, 637, 657, 681, 681, 693, 698, 701,

    asked by Carolyn
  290. Statistics

    The populaion mean annual salary of service desk managers is $48,000 with a standard deviation of $1,800. A sample of 36 service desk managers is randomly selected. What is the probability the mean annual salary of the sample is less then $47,550?

    asked by Dorothy
  291. Grammar

    A sentence fragment can only be caused by a missing subject. A) True B) False My answer is B

    asked by Marie
  292. college algebra

    use completeing the square to describe the graph of f(x)=4-16x-x^2 support your answers graphically

    asked by ladybug
  293. math

    do not know how to get answer on kathleen spent $30.50 on two shirts. One shirt cost $3.50 more than the other. How much did each shirt cost?How do you get the answer for X +X+3.50 = 30.50. Trying to explain how to get answer to a 5th grader.

    asked by Anonymous
  294. physics

    It has been suggested that rotating cylinders about 12 mi long and 4.1 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall

    asked by monic
  295. Math

    Find the linear speed in feet per minute of a seat on the Ferris wheel. v= r.w How do I find out "w"? r= 25 ft. arc= 40 ft. angle= 58° 1 revolution= 157 ft./revolution

    asked by Melia
  296. Science 8R - help

    Homework - Draw a graduated cylinder with different liquids in it (different colors) and different densities. Write the densities next to the liquid. What kind of liquid???? How will I know the densities???? What's the color of the liquid???? please help

    asked by Laruen
  297. algebra

    Y^2-y-6

    asked by jamie
  298. Physics

    Two identical objects are in the same surroundings at 4.50oC. One is at a temperature of 1400 K, and the other is at 1040 K. Find the ratio of the net power emitted by the hotter object to the net power emitted by the cooler object.

    asked by jakob
  299. 8th Gov.

    13 letter word .............a group of individuals gathered together for a purpose)

    asked by Auntie Chellie
  300. math

    a man bought a number of items at a bakery totalling $10.20 ,if the sales tax was $0.51 what is the tax rate?

    asked by alexander
  301. english

    What is the verb (linking or action) in "Long ago, farmers milked cows by hand"

    asked by Riley
  302. Physics

    An object with a weight of 30 newtons is placed on a flat, level surface. What is the normal force that the surface pushes on the object with?

    asked by Olivia
  303. math

    jessica made 8/3 pounds of fudge. she gives 3/4 pound of fudge to will. how many pounds or how much of a pound of fudge does she have left?

    asked by michaela
  304. college algebra, Please help!!

    How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the

    asked by ladybug
  305. college algebra, Please help!!

    How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the

    asked by ladybug
  306. college algebra, Please help!!

    How can the graph of g(x)=3square root x+3 be obtained from the graph of g(x)= 3 square root x? A. shift the graph 3 units right b. shift the graph 3 units up c. shift the graph 3 units down d. shift the graph 3 units left I am having problems with the

    asked by ladybug
  307. 5th grade math

    In the Finn family each girl has the same number of brothers as sisters. Each boy has twice as many sisters as brothers. How many children are in the family?

    asked by Anonymous
  308. math

    I am trying to figure out an input/output problem: Input Output 1 8 2 14 3 - - 24 - 28 6 -

    asked by lisa
  309. math

    if only digits 0,1,2,3,4,5,6, and 7 may be used find number of possibilites four digit numbers

    asked by Andrew
  310. Calculus 2

    Find the limit as x approaches infinity of (1-(1/(2x)))^(2x).

    asked by Heather
  311. math

    What is the sum of a 22–term arithmetic sequence where the first term is 56 and the last term is –28

    asked by brianna
  312. Physical scince

    What are the equations for potential and kinetic energy?

    asked by Zack
  313. Math

    Solve the equation: 125^r=5

    asked by Laura
  314. Punctuation

    Choose the correctly punctuated sentence: A) Her mother described her as a self-centered inconsiderate person. B) Her mother described her as a self-centered, inconsiderate person. C) Her mother described her, as a self-centered, inconsiderate person. I

    asked by Marie
  315. college algebra, Please help!!

    the graph of y=1/3 3square root x+5 can be obtained from the graph of y=3square root x by which transformations? Horiztonal shift: a. 5 units to the left b. 3 units to the right c. 3 units to the left d. 5 units to the right By what factor of y=3 square

    asked by ladybug
  316. Punctuation

    Choose the correctly punctuated sentence: A) The weather on November 3 2010 was warm and sunny. B) The weather on November 3, 2010 was warm and sunny. C) The weather on November 3, 2010, was warm and sunny. My answer C

    asked by Marie
  317. algebra 2

    Passes through (1, 1) and perpendicular to y= -1/2x +4.

    asked by Brittni
  318. Personal Dimensions of Education

    The subject and verb should agree even when other words come between them. For example: The students as well as their teacher, are excited about the upcoming trip to Italy. Is it True or False

    asked by Jackie
  319. science

    How to do a analogy of a cell compared to tissue.

    asked by taliah
  320. math

    Which of the following is NOT equivalent to 4 × 23c? A c × 23 × 4 . B 4 × c × 23 . C 23c × 4 . D 23 × 4 × c . E 27 × c

    asked by Anonymous
  321. analyzing poems

    Spatial depths of being survive The birth to death recurrences Of feet dancing on earth of sand; Vibrations of the dance survive The sand; the sand, elect, survives The dancer. He can find no source Of magic adequate to bind The sand upon his feet, his

    asked by greeny
  322. geometry

    Rick's 76ft times 50ft house sits on a plot of land as shown in the diagram below. If 1 bag of lawn food covers 5000 ft squared , how many bags should Rick buy to cover the lawn (shaded)?

    asked by Rachel
  323. Grammar

    Choose the correct sentence A) Patient reports drinking socially, smoking daily, and occasional drug use. B) Patient reports drinking socially, smoking daily, and he uses no drugs. C) Patient reports drinking socially, smoking daily, and using no drugs. I

    asked by Marie
  324. math

    the sum of two numbers is 42 their prodcut is 185 what are the two numbers. Need to know how to get the answers for a 5th grader

    asked by Anonymous
  325. Grammar

    Mother wondered from __________ her children had gotten the head lice. A) who B) whom I answered b

    asked by Marie
  326. Precalculus 2

    Similiarly to a question I asked previously I took the same approach. the problem is: what value(s) of theta solve the following equation? cos(theta)sin(theta) - 2 cos(theta) = 0? I let Cos theta = X and sin theta = X unfortunately I end up with something

    asked by Greg
  327. Science

    How can knowing about the chemical properties of different elements help a society become more sustainable?

    asked by sara
  328. Business finance

    a preferred stock paying 9.7% on $125 par value equals what? move decimal two places to right. thank you

    asked by Lynda
  329. Chemistry Help

    If you mixed 10.0 mL of calcium nitrate and sodium phosphate, both 0.250M,which of the two would be the limiting reactant?

    asked by Alex
  330. Grammar

    The patient's husband is older than __________. A) her B) she I answered B

    asked by Marie
  331. Math URGENT!

    the roots of a tree are 1/8 of the tree. they are 0.87 m. how tall is the tree? my answer: 0.87 x 7 = 6.09 m please check if my answer is right thanks :)

    asked by Winnie
  332. Writing

    I am doing a journal review paper for Psychology. What are the implications of this work (i.e. what light does it shed on the particular topic related to psychology)? I do not understand the question. What is it asking me to do? Can someone explain the

    asked by Ana
  333. college algebra

    determine the quadratic function of f whose graph is the vertex of (1,-4) and the y-intercept is -3.

    asked by ladybug
  334. Thanksgiving Writing-Introduction

    I need help on writing an INTRODUCTION from a turkey's perspective why pilgrims shouldn't eat turkey for Thankgiving feast.

    asked by Celest
  335. world history

    Why did different regions in Africa develop in different ways between 1000 and 1700?

    asked by K
  336. math

    In the Finn family each girl has the same number of brothers as sisters. Each boy has twice as many sisters as brothers. How many children are in the family?

    asked by Anonymous
  337. Science 8R - help!!!!!!!!!!!!!!!!! (anyone????)

    Homework - Draw a graduated cylinder with different liquids in it (different colors) and different densities. Write the densities next to the liquid. What kind of liquid???? How will I know the densities???? What's the color of the liquid???? please help

    asked by Laruen
  338. physics

    jess = 65kg, mary 55kg. Jess on trapeze together after pick up 5.5ms-1. calculate the verticle height of the drop after jess picks of hanna.

    asked by amy
  339. Biology

    How do connective tissue cells differ from nerve cells

    asked by Many
  340. Conjecture

    what conjecture could be made and proven from the following? sin(3x)/sin(x) - cos(3x)/cos(x) I put it on my calculator and based on the graph I say that as it crosses the y axis the values get larger.

    asked by Greg
  341. arithmetic

    does -9 + 2 equal 2 + (-9)?justify your answer.

    asked by jerry
  342. geometry

    Prove that if the area of a rectangular patio abcd is 25sq units and one lengths is 5 units then abcd is a square

    asked by sherianna johnson
  343. MSU

    Shirts Unlimited operates a chain of shirt stores that carry many styles of shirts that are all sold at the same price. To encourage sales personnel to be aggressive in their sales efforts, the company pays a substantial sales commission on each shirt

    asked by Sam
  344. math 1

    Pls solve this using one variable: The difference bet 2 numbers is 3. The sum of thrice the smaller and the larger is 35. Find the original number.

    asked by MNHS
  345. books

    in the book it happened to nancy what cost her $6 and what important decision doed she have to make?

    asked by it happened to nancy
  346. calculus

    okay i need to find the derivative of f(x)=cosπ(x^2) and if you could show steps it would be GREATLY appreciated. thank you so much!

    asked by tim
  347. physics

    a college student takes her book to class by placing them in a box and pulling it around school. She pulls on the box with a force of 90N at a angle of 30 relative to the horizontal. the box of books has a mass of 20 kg and the coefficiant of kinetic

    asked by poop
  348. physics

    a college student takes her book to class by placing them in a box and pulling it around school. She pulls on the box with a force of 90N at a angle of 30 relative to the horizontal. the box of books has a mass of 20 kg and the coefficiant of kinetic

    asked by poop
  349. Pre-Calculus

    Same problem with this question The angle θ is in the fourth quadrant, and tan θ = -3/7. Point P is on the terminal arm of angle θ. Which is a possible coordinate for P? A) -21,9 B) 9,-21 C) -9,21 D) 21,-9

    asked by Shreya
  350. physics lab

    For an unknown sample of the experiment, students measure 1602 counts when they first receive their sample and 1317 counts 3.5 minutes later. Calculate the half-life t12 of their sample.

    asked by Lauren
  351. english

    Is this sentence correct? A sheet lied on the rug to catch paint splatters.

    asked by mary
  352. chemistry

    what is a positron

    asked by sherry
  353. english

    sue, my neighbor usually plants her flowers in april.

    asked by sue
  354. Science

    Why are pi and pi* (anti-pi) transitions on conjugated double bonds such good absorbers of visible light?

    asked by Dylan
  355. Math

    Evalute each exxpression. write each answer in simplest form. 12b for b=7/12

    asked by Mother Trying to help son
  356. adverbs and other parts of speech

    3. Which one of the following sentences does not contain a prepositional phrase?

    asked by gloria
  357. statistics

    Settlement of two species of mussel larvae was studied. In a wave exposed location, a collector pad yielded 108 larvae of Mytilus trossulus and 72 of M. californianus. In a wave sheltered location, a collector pad yielded 54 larvae of M. trossulus and 16

    asked by erik
  358. 7th Grade Math

    Help!!! If a den has 0.5 by 0.6 dimentions , what will be the dimensions after the house is built; 1/2 in = 10 ft Can any one help me figure this out???? Thanks!!

    asked by Celeste
  359. Science

    Chl has an absorbance peak at 435nm (Soret band) and a peak at 665nm (Qytransition). Calculate the energy gap (in Joules) between the ground and excited states of these two transitions.

    asked by John
  360. English Thesis Statement

    Critique my thesis please? Sartre uses the ideas he lays out in “Self-Deception” in his short story “The Wall” to establish the connection between bad faith and living toward death, and to reject the Freudian notion of the unconscious in favor of

    asked by Sahil
  361. college algebra

    determine the quadratic function f whose vertex is (2,-4) and passes through (3,-1) f(x)= what? type answer in form of f(x)=ax^2+bx-c

    asked by ladybug
  362. Math

    G(x)=2x+5 G'(x)=2 there is no critical number

    asked by Anonymous
  363. Math

    whay is the critical number of the fuction G(x)=2x+5

    asked by Ishmael
  364. statistics

    Settlement of two species of mussel larvae was studied. In a wave exposed location, a collector pad yielded 108 larvae of Mytilus trossulus and 72 of M. californianus. In a wave sheltered location, a collector pad yielded 54 larvae of M. trossulus and 16

    asked by erik
  365. math

    Write four million, four thousand, forty in standard form.

    asked by Joe
  366. english

    assign each word a part of speech A mistake at a pharmacy sent to the hospital.

    asked by michele
  367. English

    Classify the sentence: "Stand quietly in front of the camera." We know it is an imperative sentence, but what is "front" and "of"?

    asked by Dominic
  368. chemistry

    what is the total pressure in a gas mixture of 100 mm hg O2, 820 mm hg N2, and 1.5 mm hg CO2?

    asked by mary
  369. chemistry

    what is the total pressure in a gas mixture of 100 mm hg O2, 820 mm hg N2, and 1.5 mm hg CO2?

    asked by mary
  370. Art

    Early books were illustrated using this technique.

    asked by Bell
  371. Trigonometry

    What value(s) of theta solve the following equation? cos^2(theta)-cos(theta)-6=0? I try plugging in different numbers but I am not sure exactly what I am looking for in order to solve?

    asked by Greg
  372. Triangles

    solve any triangles satisfying alpha = 20 degrees b = 10 c = 16 b and c are 2 side values and if I use the pythagorean theorem and I get 18.18? Did I do this right?

    asked by Greg
  373. Art

    This was the purpose of a missal.

    asked by Bell
  374. Grammar

    Choose the correctly punctuated sentence: A) Upon hearing the Huskies were playing the Ducks she immediately bought tickets. B) Upon hearing the Huskies, were playing the Ducks she immediately bought tickets. C) Upon hearing the Huskies were playing the

    asked by Marie
  375. Art

    This machine changed the way early books were made.

    asked by Bell
  376. cllege algebra

    determine the qudratic function whose vertex is (2,-4) and passes through (3,-1) fx=

    asked by zach w
  377. collge algebra

    state the domain, range,the asymptotes fx =6-1/(x+5)^2

    asked by zach w
  378. math

    if john received an A on three of the last four math quizzes. what is the ratio.

    asked by kiarah
  379. science

    if a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50mi/hr? formula

    asked by aramon mo
  380. science

    if a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50mi/hr? formula

    asked by aramon mo
  381. math

    THE POPULATION OF LINGO IS PARTY ENGLISH AND PARTLY FRENCH.IF 80% SPEAK ENGLISH AND 70%SPEAK FRENCH.WHAT % SPEAK BOTH LANGUAGE?

    asked by wan
  382. science

    A cart rolling down an incline for 5.0 seconds has an acceleration of 4.0 m/s. If the cart has a beginning speed of 2.0 m/s, what is its speed?

    asked by aramon mo
  383. math

    number sense- What two simpler problems can you use to find 9 x 38?

    asked by mike
  384. Geometry

    y-8= 4/3 x(x+4)

    asked by Ashley
  385. maths

    using the digits 1,3 and 5 only once write the greatest and least three-digit numbers you can

    asked by kekeli
  386. MATH

    A 3 CM CUBE IS PAINTED ON ALL ITS FACES.IT IS THE CUT INTO 1 CM CUBES .HOW MANY CUBES WILL HAVE PAINT ON EXACTLY FACES?

    asked by wan
  387. English

    1. I have to go to my English academy to learn English from a native speaker. 2. I have to have a group chatting on the smart phone with my close friends. 3. I have to play computer games on-line. 4. I have to complete my social studies homework with

    asked by rfvv
  388. college algebra

    find the intercept of the equation (x+6)^2(x-1)^2 does this crosses the x axis the smaller or touches the x axis or does it touch at the larger x intercept or crosses the larger

    asked by zach w
  389. MATH

    HOW MANY MULTIPLES OF 11 ARE THERE BETWEEN 200 AND 500?

    asked by wan
  390. prime factorization

    how do i find the prime factorization for 42???

    asked by Celest
  391. Statistics

    When estimating a population mean μ, where the population standard deviation σ is known, we can: a. choose a larger z value, construct a wider confidence interval, and achieve a lower confidence level b. choose a smaller z value, construct a narrower

    asked by Melanie
  392. MATH

    LAST YEAR BOB'S AGE WAS A SQUARE NUMBER AND NEXT YEAR IT WILL BE A CUBE NUMBER. HOW OLD IS BOB NOW ? PLEASE EXPLAIN HOW YOU WORK IT OUT ,THANKS

    asked by wan
  393. Physics

    A 3 kg ball is traveling in a circle of radius 2 meters with a tangential velocity of 2 meters/second. Find the centripetal acceleration of the ball and the centripetal force acting on it.

    asked by Sam
  394. maths

    After one year ,a writer had to pay $589 in interest on a $6,200 loan.what is the interest rate?

    asked by alexander
  395. College Algebra

    I am using Hawkes Learning System (8.7 Nonlinear Systems of Equations)and my problem is x^2+y^2=13 and y+7=x^2. The answers I came up with are 2 square root of 3 and 3 for my x's. And I received (5,-4) as the y-coordinates. Is this correct?

    asked by Angelica
  396. Grammar

    The patient and __________ were lifted carefully onto a stretcher. A) her B) she I answered A

    asked by Marie
  397. English

    Find an issue with two sides.

    asked by Jaskuine
  398. math

    ok so this question is to ms. sue this question says what is the actual height of the living room whose distance is 9/20 inch on the the blue prints??? can u help me please -celeste

    asked by Celeste
  399. Chemistry

    How much copper is in 4.722 mol of copper(II) chloride? Answer in units of g What should I do?

    asked by Peter
  400. MATHEMATICS

    alpha +beta=pie/2 & beta+gama=alpha then tan alpha=?

    asked by Raju
  401. geometry

    Write a flowchart proof: given BD bisects

    asked by sherianna johnson
  402. biomechanics

    a)Describe the structure of the contractile elements of skeletal muscle b)Sketch a graph of the relationship between developed tension and muscle length and explain the shape of the curve in terms of the interaction between thick and thin myofilaments C)

    asked by dmkp
  403. biomechanics

    Briefly describe the distribution problem and the two techniques used to overcome it.

    asked by dmkp
  404. MATH

    HOW TO USE HUNDREDS CHART TO ANSWER THIS QUESTION;WHat % of the numbers are multiples of 3

    asked by wan
  405. ss

    how did kites affect people, cultures and economies

    asked by Nick
  406. Grammar

    A prepositional phrase always starts with the preposition. A) True B) False I answered A

    asked by Marie
  407. math

    please explain how to use hundreds chart to answer this queston;WHAT % OF THE NUMBERS ARE MULTIPLES OF BOTH 2 AND 3? i have no idea how to work it out, thanks

    asked by wan
  408. math

    How do you write the following digit:five thousandths.Does this right,0.005

    asked by zack
  409. Grammar

    “After a very painful examination.” is a A) Fragment B) Sentence

    asked by Marie
  410. computers lies or truth VEY URGENT

    I saw a website that said the world will end in 2015. Is this true or not? I'm getting really really scared.

    asked by Anonymous
  411. physics

    a man drives with an average speed of 25 mph for 20 minutes. he rests at his destination for 1 hour and then returns home with an average speed for this leg of the trip of 15 mph A) what is his average speed for the round trip B) What is his average

    asked by Matt
  412. Math

    Theater has 108 seats, which are arranged in rows. The number of seats in each row is 3 less than the number of rows. How many rows of seats are in the theater.

    asked by Jamie
  413. Grammar

    A preposition links a noun or verb to other words in a sentence. A) True B) False I answered B

    asked by Marie
  414. math((PLEASE HELP!))

    5-3r=-37 r= ? x/8+10=13 x= ?

    asked by Emily
  415. Physics

    Water (η = 1.00E-3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0120 m3/s. As the figure below shows, there are two vertical tubes that project from the pipe. Assume that H = 0.0421 m and L = 0.706 m. Calculate the radius of the

    asked by Alexa
  416. Grammar

    Essential clauses should be set off with commas. A) True B) False My answer is B

    asked by Marie
  417. math

    if my input numbers are 1,2,3,4,5,6 and my output numbers are 8, 14, ?, 24,28,?...I cannot figure out the rule and the numbers where the question marks should be.

    asked by lisa
  418. physics

    Runner A is running at a constant rate of 2.3 m/s when he passes RUmmer B who is stationary. Runner A continues running at a constant pace, and Runner B begins to run 4 seconds after Runner A just passes him. If Runner B is accelerating at a rate of .5

    asked by Matt
  419. chemistry

    when Na compounds are heated, thy give off a light of 5890 A. If 1 x 10-4 mole of Na atoms each give off a photon of this wavelength, how many kilojoules of energy are given off?

    asked by marcus
  420. physics

    A red ball is thrown up off the edge of a building 10 m tall with an initial speed of 4 m/s. A) how long does it take for the red ball to strike the ground below? B) If a black ball is dropped off the edge of the same building, how many seconds after the

    asked by Matt
  421. Grammar

    A number of small bruises __________ present upon examination. A) was B) were I say it's B, but it could also A because they both work.

    asked by Marie
  422. Calc 1

    What is the derivative of dS=x^2+ 5488/x?...

    asked by Terri
  423. busness

    which of the followig should you not do in the close of an interview give final explanation for a weknes that you have

    asked by Anonymous
  424. Math

    What is 33 1/3 off 143.33 How do you do this??

    asked by Marko
  425. biology

    define natural selection

    asked by t
  426. Science and Math Combined

    Can someone please help me understand how I figure out how much electricity I used when using a small appliance (lets say 300 watts. For the duration of 3 hours? Does anyone know the formula to figure this out?

    asked by Stacy
  427. Math

    What is the inverse equation of f(x)=(x+2)/(x-1)?

    asked by Laura
  428. Statisitcs

    The mean height of fully grown birch trees are 18 feet with a standard deviation of 1.2 feet, normally distributed. Random samples of size 9 are drawn from this population and the mean of each sample is determined. Find that mean and the standard error of

    asked by D
  429. math

    What numberis 60% of 35?

    asked by harrison
  430. physics

    The radius of curvature of a convex mirror is 1.60 x 102 cm. An object that is 11.0 cm high is placed 40.0 cm in front of this mirror. Determine (a) the location and (b) the height of the image.

    asked by johnathan
  431. math question

    jane bought two shirts for $30.50 and she paid $3.50 more for one how much did each cost

    asked by Anonymous
  432. Grammar

    Although the medication was __________, she claimed to have never actually taken any. A) hers B) her's I answered A

    asked by Marie
  433. math

    1)d/dx of cos4x/3-x^2(inculding quentient&chain rule) 2)sin^2x/1+cosx(same method)

    asked by ani
  434. Physics

    A 3 kg ball is traveling in a circle of radius 2 meters with a tangential velocity of 2 meters/second. Find the centripetal acceleration of the ball and the centripetal force acting on it.

    asked by Mark
  435. algebra

    3. Find a model for the set of values. x –5 –4 0 4 5 y 25 16 2 16 25 Can someone explain what the graph might look like whether it opens up or down, or slanted line or squiggle line

    asked by lee
  436. ersonal Dimensions of Education

    True or False... As a general rule, collective nouns- such as family, class, faculty, audience- take singular verbs. For example: This year the graduating class is having a beach party after the ceremony.

    asked by Jackie
  437. math

    What is 1/2 x 5?

    asked by Anonymous
  438. Physics

    A baseball is thrown such that it is in the air for 4 seconds and lands 100 m away. Find the initial vertical and horizontal components of the baseball's velocity.

    asked by Josh
  439. college algebra, Please help!!

    which of the following best describes how the graph of f can be obtained from the graph of y=1/x^2? f(x)=14/x^2 choose the correct answer a.vertical stretch by a factor of -4 b. reflection over the y-axis, vertical shrink by a factor of 4 c. reflection

    asked by ladybug
  440. math

    what is the least and greatest of 1\5 and 3\5 and 2\5?

    asked by jakyiah
  441. math

    the sum of two numbers is 42. their product is 185. what are the two numbers?

    asked by Anonymous
  442. Punctuation

    Are these punctuated correctly? 1.Depression is often a genetic disorder, but it can be safely treated with medication. 2.Learn the difference between an animal, a vegetable, and a mineral.

    asked by Marie