Questions Asked on
November 7, 2011

  1. Calc

    Describe in words the set of all points in R³ that satisfy the following expressions: a) z=0 b) z≥0 c) y≤0

    asked by Erica
  2. statistics

    suppose x is a uniform random variable with c=40 ana d= 70 find the probability that a randomly selected observation is between 43 and 65

    asked by Anonymous
  3. physics

    find the total mechanical energy of a mass-spring system with m=1.24 kg and maximum speed 0.670 m/s

    asked by Brittanie
  4. statistics

    high temperatures in a certain city for the of the month of august follow a uniform distribution over the interval 73 degreef to 103 degree f find the high temperature which 90% of the august days exceeded

    asked by Anonymous
  5. calculus

    5. Let f be the function given by f(x) = x3- 7x + 6. a. Find the zeros of f b. Write an equation of the line tangent to the graph of f at x = -1 c. Find the x coordinate of the point where the tangent line is parallel to the secant line on the interval [1,

    asked by Yoona
  6. smith

    given that sin(a+b)= 56/65, cos(a+b)-33/65, cos(b)=-12/13 and pi/2

    asked by jared
  7. Trig

    Prove the following functions: (sinx+sin2x)/(1+cosx+cos2x)=tan x (cos3x/sinx)+(sin3x/cosx)=2cot2x tan2x=(2/cotx-tanx) theses are due in the am. Fastness would be great?

    asked by jared
  8. trig

    given that sin(a+b)= 56/65, cos(a+b)-33/65, cos(b)=-12/13 and pi/2

    asked by jared
  9. Trig/advance math concepts

    state the amplitude, period, and phase shift of the function -0.4 sin (10x+pie/2)

    asked by Cilla
  10. Math

    Three students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1320. How old are they?

    asked by Wendy
  11. algebra

    Solve -7(11-4w)-15w=-27-(50-13w) show work

    asked by sharday
  12. algebra

    Find the slope and y-intercept of the line in the given equation. y=-8/11 x-5

    asked by sharday
  13. english

    conversation between two friends on school of 2050 how it would be compared to present one

    asked by sam
  14. Psychologist

    Maurine is a social drinker, drinking only occasionally during weekend parties with her friends. When she found out that she was pregnant, she: a. stopped all drinking because she knew that even a small amount of alcohol could harm the developing baby. b.

    asked by Kasey
  15. Psychology

    Danette knows she is not at all like her parents. She could never be like them. She is her own unique person. Her style of dress, mannerisms, and language emphasize her uniqueness. According to Erikson, Danette is attempting to establish: a. permanence. b.

    asked by Kasey
  16. Physics

    An airplane is moving through the air at a velocity v = 227 m/s. Streamlines just over the top of the wing are compressed to 80% of their original area, and those under the wing are not compressed at all. (a) Determine the velocity of the air just over the

    asked by mymi
  17. Physics

    A 1.8-g balloon is filled with helium gas. When a mass of 4.8 g is attached to the balloon, the combined mass hangs in static equilibrium in midair. Assuming that the balloon is spherical, what is its diameter? (The density of helium is 0.179 kg/m3, and

    asked by mymi
  18. Physics

    Two spheres of the same diameter (in air), one of a lead alloy the other one made of steel are submerged at a depth h = 2932 m below the surface of the ocean. The ratio of the volumes of the two spheres at this depth is VSteel(h)/VLead(h) =

    asked by mymi
  19. Physics

    Two balls of the same volume are released inside a tank filled with water as shown in the figure. The densities of balls A and B are 0.86 g/cm3 and 0.55 g/cm3. (The density of water is 1.00 g/cm3. Take the +y direction to be up. Indicate the direction with

    asked by mymi
  20. Physics

    The atmosphere of Mars exerts a pressure of only 600 Pa on the surface and has a density of only 0.02 kg/m3. (a) What is the thickness of the Martian atmosphere, assuming the boundary between atmosphere and outer space to be the point where atmospheric

    asked by mymi
  21. english

    how to compare and differentiate is my problems.example can someone please do this to me in this two topics .love and heroism just brief? thank you for doing that.@N1-LOSI

    asked by barka
  22. Physics

    Water at room temperature flows with a constant speed of 8 m/s through a nozzle with a square cross section, as shown in the figure. Water enters the nozzle at point A and exits the nozzle at point B. The lengths of the sides of the square cross section at

    asked by mymi
  23. math algebra in second year level

    venus says that the quantity of 6m raise to 5 over 4 are equal to 6m 4th root of 6m?do you agree why or why not?

    asked by sheila mae
  24. English

    1. Don't ask for directions. 2. Don't ask for direction. (Are both grammatical? Which one is correct?) 3. That's the foundation of the success of our work. 4. That's the foundation of the success for our work. (Are both grammatical? Do we have to use 'of'

    asked by rfvv
  25. math algebra in second year level

    is the quantity of 3x raise to zero raise to 1 half is equal to square root of 3?

    asked by sheila mae
  26. chemistry

    An element with relative atomic mass 20.8 is found to contain 2 isotopes having a relative atomic mass of 20 and 21.Find the % composition of the element.

    asked by Luc
  27. math algebra in second year level

    show that each of the following mathematical statement is true; a;(6 raise to 1 over 5)raise to 2 is equal to fifth root of 6 raise to 2? b;fourth root of 3 raise to -3 is equal to 1 over 27 raise to 1 over 4?

    asked by sheila mae
  28. Psychology

    Optimum physical health usually occurs: a. between the ages of 15 and 21. b. between the ages of 18 and 25. c. between the ages of 25 and 40. d. between the ages of 40 and 55. I think it is either c or d.

    asked by Kasey
  29. chemistry

    In the reaction:Zn+ 2HCL>ZnCl2+h2.What mass ZnCl2 is produced when 10g of zn reacted

    asked by Luc
  30. chemistry

    In the reaction:Zn+ 2HCL>ZnCl2+h2.What mass ZnCl2 is produced when 10g of zn reacted

    asked by Luc
  31. Science

    "a glass of water is at 60 degrees C if the temperature of water drops to 40 degrees C its specific volume will?

    asked by John Wilson
  32. chemistry

    Calculate the % by mass of carbon in octane

    asked by Luc
  33. chemistry

    Calculate the mass of carbon dioxide produced by burning 0.60kg of methane

    asked by Luc
  34. chemistry

    A sample of a compound is found to contain 21.84kg of phosphorous &28.16g of O2.find its emphirical formula

    asked by Luc
  35. chemistry

    50ml of 0.3M SO4 is titrated against KOH & end point is reached when 35.3 ml of the acid is added.find the molarity of the alkali

    asked by Luc
  36. chemistry

    You are provided with supply of 2M SO4.Explain how you may prepare 500ml of 0.5M SO4.

    asked by Luc
  37. Science

    If you mix 40.0 grams of Cu with 50.0ml of 1.20 M HNO3 solution, how many grams of NO gas can be made?

    asked by Ashley
  38. chemistry

    44:65f

    asked by d.r luke
  39. chemistry

    44:65f

    asked by d.r luke
  40. English

    I ugently need to know the pronunciation of the following words "Gujerat", "Gir Forest", and "Madhya Pradesh".I included four other sentences.Thank you. 1) The threat of extinction concerns the Asiatic lions, too. 2) The Asiatic lions are on the verge

    asked by Henry2
  41. physics

    a kid fires a slingshot pellet directly at a target that is far enough away to take one half second to reach. how far below the target does the pellet hit? how high above the target should she aim?

    asked by Anonymous
  42. math

    Ali scored 16 runs in a second cricket match and twice as many in the third match.If his total score so far is 95 runs,how many runs did Ali score in the first match

    asked by yousif
  43. MS-44

    Antique Arts Company would pay Rs. 2.50 as dividend per share for the next year and is expected to grow indefinitely at 12%. What would be the equity value if the investor require 20% return?

    asked by Manas
  44. Calculus

    Money is deposited in an account for which the interest is compounded continuously. The initial investment in the account is $2000 and the annual interest rate is 14%. What is the time required for the balance to double? Round your answer to three decimal

    asked by Help Me
  45. English

    I have a doubt concerning the following structure: The Asiatic lions are in danger of extinction, as are the Asiatic cheetahs. (like the Asiatic cheetahs is also possible?) Where is this rule explained: as + verb + word like + word

    asked by Henry2
  46. child daycare

    wat is a developmental achievement of a two-months-old infant? a. rolling from side to back b.Eruption of teeth c.Good control of head d. Turning toward the source of a sound 2. a condition often brought on by an allergic reaction is a. anemia b.diabetes

    asked by fay
  47. Physics

    Marie Curie first identified the element radium in 1898. She found that the radium-226 (mass 3.77x10^-25 kg) decays by emitting alpha particle (mass 6.64x10^-27 kg). If the alpha particle's speed is 2.4x10^6 m/s, what is the speed of the recoiling nucleus?

    asked by Amber
  48. Chemistry

    Zn + I2 ---> Zn ^+2 + 2I- will this reaction occur spontaneously?

    asked by Shelly
  49. physics help please

    What are the small-amplitude period and frequency of a 10.0 m long pendulum?

    asked by John
  50. calculus

    How do I rond three decimal places?

    asked by Christina
  51. Chemistry

    Which of the following substances is capable of reducing bromine, Br2? Cl- H2 Ni or Au I think its H2

    asked by Ryan
  52. calculous

    A particle moves on the x –axis so that its position at any time is given by x(t) = 2t3 + 1. a. Find the acceleration of the particle at t = 0. b. Find the velocity of the particle when its acceleration is 0. c. Find the total distance traveled by the

    asked by Yoona
  53. Chemistry

    if you add 0.056 moles of HC2H3O2 to 0.064 moles of NH3, how many moles of each are actually neutralized?

    asked by Cheryl
  54. statistics

    Anne, Joe and Lynn, in this order, will take turns to draw two cards from a standard deck of 52 cards. Note that each draw of 2 cards is w/o replacement but draws of different turns are with replacement (the preceding two cards will be put back and the

    asked by Edward
  55. biostatistics

    A studyis run to estimate the mean total cholesterol level in children 2 to 6 years of age. A sample of 9 participants is selected and their total cholesterol levels are measured as follows: 185 225 240 196 175 180 194 147 223 Generate a 95% confidence

    asked by natasha
  56. english

    where in the book The Importance of Being Earnest does the author make fun of the victorian value of Social Responsibility?

    asked by hannah
  57. Chemistry

    IS THIS RIGHT? Experiments were performed with four metals and solutions of their ions: A-A^+, B-B^2+, C-C^2+, D-D^2+. The results of the experiments were: D^+2 + C ---> No reaction B^+2 + C---> B + C^+2 A^+ + B ---> A + B^+2 a.) Write the equation for

    asked by Julia
  58. Mathematics

    Meiling and Meimei divide $69 into 2 shares. 3/4 of Meiling's share is equal to 2/5 of Meimei's share. How much does each get?

    asked by Michael
  59. U.S. History

    Traces the creation of the American government from Ancient Greece to Shay's rebellion. What am I supposed to do???

    asked by Alice
  60. Physics

    A 200 toy car is placed on a narrow 64--diameter track with wheel grooves that keep the car going in a circle. The 1.5 track is free to turn on a frictionless, vertical axis. The spokes have negligible mass. After the car's switch is turned on, it soon

    asked by Hsieh
  61. Spanish

    Please check-I have to rewrite with an indirect object pronoun 1. Escribo una carta a mi abuela. Le escribo una carta a mi abuela. 2.Mando una tarjeta postal a mis amigos. Les mando una tarjeta postal a mi amigos.

    asked by Ben
  62. probability

    Find the probability that an insurance company will receive more than one warranty claim per day for at least eight of the next 10 days.

    asked by Edward
  63. working with school-age children

    Which of the following is one of the steps for successful inclusion? 1) Use every inch of space in designated areas. 2)Organize all children in an assigned, designated area. 3) Modify appropriate environments and curriculum. 4)Provide every program

    asked by susan
  64. Spanish

    I had to write sentencesabout an ache in a certain body part with indirect pronoun . There were pictures provided and the first part of the sentence like "A mi amigo" and we had to fill in the restCould you check, please 1. pain in head A nosotros nos

    asked by Ben
  65. Geometry

    What is the area of a regular pentagon with a side length of 9.4 feet and an apothem length of 6.5 feet?

    asked by Louisa
  66. eth

    what are the similarites and differnces between virtue theory, ultiltarianism, and deontological ethics?

    asked by at
  67. chemistry

    Assume that you have 2.75 g of the deadly gas hydrogen cyanide,HCN. What is the volume of the gas at STP?

    asked by Christy
  68. Physics

    Two identical boats travel through still water at 3 m/s. They start from the same point, one travels parallel (and antiparallel) to the current and the other travels perpinducular. It takes one boat twice as long as the other. How fast is the current in

    asked by Joe
  69. Physics

    Michelson used a rotating eight sided mirrored "wheel" to determine speed of light. In this case the mirror is rotated at a certain frequency which allows light to travel from the source, reflect off the mirrored wheel and into the observers eyes. What is

    asked by Chris
  70. Math, Please Help!!!

    solve the trigonometric equation sinx + 1 = 2.6635. Please help me!!!

    asked by Misty
  71. English

    The thing I can't understand is the inversion subject verb in the sentence with "as" 1) The Asiatic lions are in danger of extinction, as are the Asiatic cheetahs. (like the Asiatic cheetahs/ as the Asiatic cheetahs are) 2) They have accepted my proposal

    asked by Henry2
  72. physics

    does F=ma predict the acceleration of the system accurately?

    asked by kim
  73. Physical Science

    What is the bond type of silicon difluoride?

    asked by Jill
  74. Psychology

    Avis put off writing her term paper until three days before it was due. "It's not that big of a deal. I can whip it out in a couple of hours," she thought. As it turned out, this was not the case. She averaged two-hours-a-night sleep as she struggled to

    asked by Kasey
  75. Philosophy

    In the conditional "P ¨ Q," "Q is a

    asked by Anonymous
  76. math

    1. To form a __________ we form a ratio between each frequency and the total number of scores in the set. (Points: 5) stem-and-leaf display frequency distribution relative frequency distribution frequency polygon

    asked by Anonymous
  77. Physics

    Find the initial accerleration of a rocket if the sstronauts on board experience eight times their normal weight during an initial vertical ascent. (Hint: In this exercise, the scale force is replaced by the normal force.)

    asked by GY
  78. Physics

    a 1.6kg box that is sliding on a friction less surface with the speed of 11m/s approaches a horizontal spring. The spring has a spring constant of 2000N/m. how far will the spring be compressed in stopping the box? How far will the spring be compressed

    asked by bec
  79. math

    4. For Questions 4-7, use the following data: The number of file conversions performed by a processor per day for 10 days was: 15, 27, 25, 28, 30, 31, 22, 25, 27, 29 What is the arithmetic mean of the data? (Points: 5) 20.7 25.9 27 29 5. What is the

    asked by Anonymous
  80. college math

    8. Sample data on employee age for a large auto parts manufacturer are as follows: Employee Age Frequency 25-29 25 30-34 33 35-39 62 40-44 26 45-49 31 50-54 8 What is the mean age of the employees? (Points: 5) 37 37.32 37.78 38.83

    asked by Anonymous
  81. English

    Could you please check which tense is best in the following sentences? Thank you. (The poet remembers a walk he went on with his sister, during which he was struck by the song of a Highland Lass.) 1) The poet doesn’t know the song she is singing. 2) As a

    asked by Henry2
  82. writing sentences and paragraph

    Background- You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must describe

    asked by STUDY
  83. Statistics

    with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 50 percent of SOC 390 students work more than ____ hours per week? ..I don't understand how to figure this question out?

    asked by mary
  84. Chemistry

    Will the aqueous solution of titanium(II) chloride and beryllium chloride be colored or colorless?

    asked by Colby
  85. chemistry

    What is the mass of nitrogen dioxide contained in a 4.32 L vessel at 48 °C and 1.40 atm ?

    asked by Anonymous
  86. chemistry

    Predict whether nitrate salt solutions containing metal ions with the following outer shell electron configurations will be colored or colorless: [Ar] 3d^2 and [Kr] 4d^10

    asked by Dani
  87. history

    What was unusual about FDR’s first 100 days in office? a.During that period he never left the Oval Office b.He visited every sovereign nation c.It occurred in only three months d.The great volume of legislation passed into law I think its D but I just

    asked by anonymous
  88. college math

    10. For questions 10-13, use the following data: 13 29 41 60 89 14 26 53 7 14 What is the arithmetic mean of the data? (Points: 5) 20 14 34.6 82 11. What is the range of the data? (Points: 5) 14 34.6 82 50 12. What is the variance of the data? (Points: 5)

    asked by Anonymous
  89. Psychology

    As a scientist, Carl is concerned with the intensity of lights in the modern human environment. In his research project, Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed. Group

    asked by Kasey
  90. history

    What was the American position in World War II through November 1941? A.Neutral between the Allies and the Axis B.Isolationist-Don’t get involved C.Totalitarian-Take all we can get D.None of the above A?

    asked by anonymous
  91. math

    10. For questions 10-13, use the following data: 13 29 41 60 89 14 26 53 7 14 What is the arithmetic mean of the data? (Points: 5) 20 14 34.6 82 11. What is the range of the data? (Points: 5) 14 34.6 82 50 12. What is the variance of the data? (Points: 5)

    asked by Anonymous
  92. Psychology

    In a classroom experiment, students were asked to place one paper clip in each hand. They were then instructed to add paper clips to the left hand until they were certain that the clips in the left hand weighed more than the paper clips in the right hand.

    asked by Kasey
  93. college math

    14. A probability is always expressed as a value from: (Points: 5) 0 and 1. -1 and 1. 0 and 100. 0 and 10.

    asked by Anonymous
  94. college math

    15. Records at a high school indicate that each year for the past five years, 120 of the 1,500 students were absent on the first day of hunting season. What is the likelihood that a particular student will be absent on the first day of hunting season this

    asked by Anonymous
  95. college math

    16. A study of a manufacturing process indicates that 120 of 6,000 units produced are defective. If a sampler selected 100 units, how many defective units would he expect to be present? (Points: 5) 2 5 6 10 17. Six red balls and four blue balls are placed

    asked by Anonymous
  96. college math

    18. Please answer questions 18-19 using the following information: Class Scores Frequency - f Lower limit < score < upper limit 20-30 6 30-40 10 40-50 12 50-60 8 60-70 4 What is the probability that a selected observation is between 40 and 50? (Points: 5)

    asked by Anonymous
  97. college math

    20. Calculate the range, variance, and standard deviation of the following data set: 5, 5, 6, 6, 6, 8, 8, 8, 8, 10, 10, 11, 12, 12, 20 (Points: 5) Range = 15; Variance = 225; Standard Deviation = 7.5 Range = 3.85; Variance = 14; Standard Deviation = 3.74

    asked by Anonymous
  98. Phsics

    A man weighs 772 N on Earth. What would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2? The acceleration of gravity is 9.8 m/s2 . Answer in units of N

    asked by Drake
  99. chemistry

    The solubility of nitrogen gas in water at 25 °C and 1 atm is 6.8!10"4 mol/L. If the partial pressure of nitrogen gas in air above water is 0.76 atm, what is the concentration of dissolved nitrogen?

    asked by Anonymous
  100. chemistry

    A sample of air from the basement of a home is found to contain 8.3 ppm of radon. What is the partial pressure of radon in the basement if the total pressure is 755 torr?

    asked by Anonymous
  101. statistics

    A survey was conducted to measure the number of hours per week adults spend on home computers. In the survey, the number of hours was normally distributed, with a mean of 8 hours and a standard deviation of 1 hour. A survey participant is randomly

    asked by lindsay
  102. chemistry

    How can you separate Ag+, Bi3+, Ni2+ in a solution? I am suppose to make a flow chart... would i use HCL to separate Bi3+ and Ag+ from Ni2+?

    asked by Marie
  103. English

    I left out the following sentences. Thank you for your suggestions. 1) The song of the birds and the reaper arouse pleasure and relief. 2) The language of the poem contains references to the language of sight (line 1) and hearing (line 7). The language is

    asked by Henry2
  104. physics

    A carton on a ramp that has an angle of 25 degrees. If coefficient of kinetic friction is .12, what is the speed at the bottom of the ramp, knowing that the carton was 9.3m from the base?

    asked by Anonymous
  105. French

    Bonjour! I have to find synonyms for the word Fantastique the synonyms should begin with g .... t... b... s... Thanks

    asked by Ruth
  106. Psychology

    Sound that impinges on the inner ear and the auditory nerve arrives as a fairly meaningless stimulus. At this point, it should be viewed as: a. perception. b. sensation. c. an auditory stimulus item. d. free of environmental noise. I think it is either a

    asked by Kasey
  107. business strategic management

    Discuss in specific terms your understanding of ethical business strategies, corporate social responsibility, and environmental responsibility at Best Buy?

    asked by lost
  108. Maths

    In the spring, 80% of the sheep in a flock of sheep had lambs. of those sheep with lambs, 30% had one lamb, 40% had two lambs and the rest had 3 lambs. a total of 240 lambs were born. how many sheep are in the flock? you must show your working.

    asked by chloe
  109. business

    what kind of trde barriers does egypt have and what website should i used

    asked by kate
  110. Math College

    A 6-sided die is rolled 14 times. What is the probability of seeing a "6" at least 2 times? I am sooo clueless please help!

    asked by Adrianna
  111. Psychology

    Kara heard the noise, but could not understand what was being said. Perhaps it was simply the humming of the machines that she heard? She was uncertain whether she should move toward or away from the sound. Kara is having difficulty with: a. sensation. b.

    asked by Kasey
  112. Math

    Suppose $1.00 amounts to 1.082431 at 8% compounded quarterly. How much does $200 amount to? (a) $ 126.82 (b) $ 101.46 (c) $ 216.49 (d) $ 380.47 (e) $ 250.00

    asked by Anonymous
  113. Math

    If the value of $1 is 1.082431 in one year at 8% compounded quarterly, what is the effective interest rate? (a) 82.4% (b) 8% (c) 0.824% (d)8.24% (e) 824.31%

    asked by Anonymous
  114. social studies.

    15. What was a result of WWII on women’s rights in the US? A.Women were greatly oppressed and suffered setbacks B.Women lost the vote during wartime C.Opportunities for women increased D. None of the Above I believe its C ? 16. What happened with most of

    asked by Maddie
  115. Math

    Alice requires $10,000 in two years. If the interest rate is 6% and compounded quarterly, how much must Alice place in the account to have the required amount? (a) $ 6,274.10 (b) $ 8,877.10 (c)$ 8,573.40 (d) $ 5,000.00 (e) $ 10,000.00

    asked by Anonymous
  116. Physics

    Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass=0.34 kg) and the other of metal

    asked by Anonymous
  117. History of America

    Why was the Sojourner Truth Housing Project remarkable? a.Only single women were allowed to live there b.It was located in a white neighborhood c.It was the first converted battleship used this way d.Citizenship was granted if residents lasted one year I

    asked by Anonymous
  118. computers

    Which of the following operating system types is used in medical equipment or a cash register? (Points: 5) a. multi-user/multi-tasking b. real time c. single-user/multi tasking d. single user/single tasking is it A

    asked by john
  119. computer

    Which of the following operating system types is used in PDAs? (Points: 5) a.Multi-user/multi-tasking b.Real-time c.Single-user/multi-tasking d.Single-user/single-tasking is it B

    asked by john
  120. History

    Representatives met in San Francisco April 25, 1945 to consider: a.Boycotting the Soviet Union b.Demanding reparations from Germany c.Dividing up the Japanese Islands d.Establishing the United Nations Is it D?

    asked by Anonymous
  121. Calculus

    The price per unit is given by the equation p=18-2ln(x). What is the marginal revenue at x=400? And what should the number of units sold be in order to maximize revenue?

    asked by Lindsay
  122. chemistry

    A solution is prepared by adding 30.00 g of lactose (milk sugar) to 110.0 g of water at 55 °C. The vapor pressure of pure water at 55 °C is 118.0 torr. The MW of lactose is 342.3 g/mol. What is the partial pressure of water above the solution?

    asked by Anonymous
  123. Calculus

    Find the Derivative of the function: f(x)= ln(x^2/2x-3)

    asked by Lindsay
  124. chemistry

    Refer to the following unbalanced equation: C6H14 + O2 CO2 + H2O What mass of oxygen (O2) is required to react completely with 10.8 g of C6H14

    asked by Anonymous
  125. geometry

    One right triangle has legs 18cm and 14cm. Another right trangle has legs 14cm and 24 cm. What is the ratio of the areas of these two triangles?

    asked by Sam
  126. Chemistry

    Which one of the following liquids will have the highest freezing point? A. pure H2O B. aqueous glucose (0.050 m) C. aqueous CoI2 (0.030 m) D. aqueous FeCl3 (0.030 m) E. aqueous NaI (0.030 m) Could you please give a step by step process?

    asked by Sarah
  127. chemistry

    A 10.0 g cube of each of the following metals is heated to 100 °C and dropped (without loss of heat during transfer) into separate but identical beakers containing 100 mL of water at 25 °C. The temperature of the water in the beaker is measured at

    asked by Sarah
  128. English

    How many homophones can you make with Halloween?

    asked by Noah
  129. government

    In what ways does the U.S. Constitution provide for protection of the people? What examples are there of when the government either protected or has failed to protect the people?

    asked by Harriet
  130. statistics

    a public health investigator wishes to determine whether a new anti-smoking film actually reduces the daily consumption of cigarette by heavy smokers. The mean daily cigarette consumption is calculated consumption for each of eight heavy smokers during the

    asked by Anonymous
  131. Chemistry

    What is the molecular weight of 30% aqueous nitric acid?

    asked by Sandra
  132. Chemistry

    A sealed flask containing water and N2 gas in equilibrium is at a temperature of 25°C. If the concentration of N2 gas in the solution is 1.4 x 10-3 M, what is the partial pressure of N2 gas in the container? (kH for N2 gas in water is 6.1 x 10-4 M/atm at

    asked by Sarah
  133. Grammar

    Select the sentence with the correct capitalization. A) The patient, who claimed to be an "ex-Christian" cried out, "praise God," once the pain medication kicked in. B) The patient, who claimed to be an "Ex-Christian" cried out, "Praise God," once the pain

    asked by Cindy
  134. Physics

    When a quarter, a nickel, a penny, and a dime are flipped; what are each of their revolutions per minute?

    asked by Jeremy
  135. algebra

    TRASLATE THE FOLLOWING SENTENCE INTO AN EQUATION. dO NOT SOLVE TEN MORE THAN THREE TIMES A NUMBER IS 130.

    asked by Angela
  136. History of America

    How did America’s Involvement change after the fall of France and the air war against Britain? Congress declared war on Germany There was no formal change of policy American advisors trained the resistance The President admitted “disappointment” 19.

    asked by Anonymous
  137. Math

    Given: f(x) = 4sin((x/2)-(pi/2))-3, Find the range and domain

    asked by Ryan
  138. Physics

    A quarterback throws a football toward a receiver with an initial speed of 18 m/s, at an angle of 29 degrees above the horizontal. At that instant, the receiver is 19 m from the quarterback. With what constant speed should the receiver run in order to

    asked by Gaby
  139. geography

    I am stuck on symbols,what does CH,dotted red lines,a grey patch,a green patch,two lines crossed over each other,NT with a shape around it written in red, LB Sta, something that looks like veins,a stylish m written in red and a nearly diagonal line stand

    asked by Anonymous
  140. physics-pls help

    The ball is thrown froma height of 10 meters with an initial upward velocity of 3.0m/s. How long does it take to land on the ground? What is its maximum height? i know the formula is d=v1t+1/2at^2 but i do not know what else to do. pls help

    asked by ted 2
  141. English

    Could you please check this sentence? Is "of hearing" wrong? Thank you. 1) The language contains references to the senses of sight and sound (or of hearing?)

    asked by Henry2
  142. English

    I forgot to include the following sentence. I corrected it but I still have a doubt. 1) The poet says that the girl's song is more welcome than any chant of the nightingale to weary travelers in the desert, and that the cuckoo-bird has never sung with such

    asked by Henry2
  143. Math

    In Mrs Halls class of 30 students, 17 have computers at home and 20 have cassettes. If 4 students in the class have neither a computer or a cassette, how many of the 30 students have both?

    asked by Tom
  144. statistics

    A group of six students all have different grades in statistics. The median mark in the group is 68. If two of the six students are selected at random, what is the probability that both have marks greater than 68?

    asked by Kendra
  145. Physics

    Hello, I posted this a bit ago, but am not sure the suggested solution was correct. Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all

    asked by Anonymous
  146. Bio

    As the number of chromosome pairs increase what happens to the number of possible gametes?

    asked by Anonymous
  147. chemistry

    radium-266 may emit a photon of light with a frequency of 4.5x 10^19 s^-1 when it undergoes nuclear fission. what is the wavelength in pm of this photon?

    asked by jj
  148. physics

    a 40kg girl climbs a vertical ladder at .5 m/s. what is her power output?

    asked by jill
  149. math

    if the arithmetic mean of 2 positive numbers (a and b) is 16 and their geometric mean is 12, find the exact value of a^3+b^3.

    asked by Cody
  150. chemistry

    A reaction produced 55.7 mL of nitrogen gas, which was collected over water at 23oC. The measured barometric pressure was 742 torr. If the vapor pressure of water at 23oC is 21 torr, what was the mole fraction of N2 in the collected gas?

    asked by Sarah
  151. chemistry

    what is the binding energy of an electron in a photosensitive metal (in kj/mol) if the minimum frequency of light that can eject electrons from the metal is 6.3 x 20^14 Hz?

    asked by jj
  152. eth

    A description of the differences how each theory addresses ethics and morality. they are virture theory, ultilitariianism, deontological ethics.

    asked by at
  153. Calculus

    Find an equation of the tangent line to the curve at the given point. y = sin(sin x), (pi, 0)

    asked by Nyke
  154. math

    A student takes in 2300 calories and Burns 2500 calories.find the net calories

    asked by Anonymous
  155. algebra

    write a true sentence using either < or> -7.82 -7.802

    asked by Angela
  156. curriculum development project

    I need someone to help me with a thematic web on Me and my Family

    asked by Maryann
  157. VETERANS DAY

    I have to write a papre about Veteran's Day and what it means to me. I have some stuff about it but I need more. Can anyone please help me???

    asked by ANA
  158. Calculus

    Suppose f(pi/3) = 3 and f '(pi/3) = −7, and let g(x) = f(x) sin x and h(x) = (cos x)/f(x). Find the following. a. g'(pi/3) b. h'(pi/3)

    asked by Christina
  159. algebra

    perform the indicated operation and if possible,simplify please show all of your work. write your answer in lowest terms. 18/35 divided by 22/25

    asked by Angela
  160. math

    Mia is approaching her goal of 119 points for the video game. She wants to put her initials on the computerized list of Top Ten Point Scorers forr the game, She moves Freddie the frog all over the terminal screen and at last she does it. Freddie the Frog

    asked by risa
  161. Geometry

    How do you find the perimeter of the rectangle? L = 10.6 in and h = 6.1 in Can someone please explain this to me? Thank you kindly.

    asked by Mindy
  162. Spanish

    Please check-I have to rewrite with an indirect object pronoun 1. Escribo una carta a mi abuela. Le escribo una carta a mi abuela. 2.Mando una tarjeta postal a mis amigos. Les mando una tarjeta postal a mi amigos.

    asked by Ben.
  163. physics

    does F=ma predict the acceleration of the system accurately?

    asked by kim
  164. any

    How might factors such as diversity, attitude, learning, and work styles affect collaboration?

    asked by Anonymous
  165. English

    I'm including part of the poem for you to check. "No Nightingale did ever chaunt more welcome notes to weary bands Of travellers in some shady haunt, Among Arabian sands: a voice so thrilling ne'er was heard In spring-time from the Cuckoo-bird ....." 1)

    asked by Henry2
  166. Spanish

    I had to write sentencesabout an ache in a certain body part with indirect pronoun . There were pictures provided and the first part of the sentence like "A mi amigo" and we had to fill in the restCould you check, please 1. pain in head A nosotros les

    asked by Ben.
  167. chem

    calculate the wavelength of the green line in the visible spectrum of excited H atoms using Bohr Theory

    asked by kris
  168. Math Garde 3

    Writing to explain if you know that 4x5=20, how can you use the commutative property to find 5x4

    asked by Hong
  169. geography

    Will you please check my answers? 1.What states border Lake Michigan? Wisconsin, Illinois, Indiana, and Michigan 2. How many states are on the 60 degrees N line of latitude? Just one state ( Alaska ) 3. What do the following countries have in common: Chad,

    asked by Reed
  170. human services

    I can not find the answer to this question;Does the Association of Social Work Board offer qualified referrals or suggest community based programs which may benefit your client base. could you please help me find a site that may have the information that I

    asked by Patiance
  171. 6th grade math

    Put these numbers in order from least to greatest. 2 7/10, 2.07, 127%

    asked by Kate
  172. Geometry

    9d-d/5=88 c/2+11c=92 How do i solve for the variables d and c?

    asked by Lilly
  173. chemistry

    Write the formula unit, total ionic, and net ionic equation for the precipitation reaction in a beaker after Al(ClO4)3, Rb2S, and CsI salts are added. Please help!

    asked by Emily
  174. algebra

    COMBINE LIKE TERMS 14-(-5x)+ 2z-(-32)+4z-2x

    asked by Angela
  175. algebra

    -1/2*3/5*(-2/7)

    asked by Angela
  176. human resources

    Having ambigous training and development goals?

    asked by marvin
  177. chemistry

    Calculate the enthalpy of reaction for the following: N2 + 3H2 -> 2NH3 they are all gases. Is this reaction endothermic or exothermic?

    asked by Chioma
  178. Math

    For the given problem simplify the expression. 1. 4d - 5 - 9d + 17 2.-8p - 12 + 7p - 11 3. 27 - 13t + 32 - 2t + 10t

    asked by Alejandro
  179. CHEM AP please help!!

    Why does the octet rule not hold for many compounds containing elements in the third row of the periodic table and beyond? (Select all that apply.) 1. Atoms of elements in the third period are less subject to destabilization from additional

    asked by kali maa
  180. Geometry

    find the perimeter of the square. L = 6.66 yd Is the answer 26 yd?

    asked by Mindy
  181. statistics

    47 65 42 47 16 36 54 17 21 58 16 31 32 13 22 The following list contains P/E ratios (price of stock divided by projected earnings per share) for health care companies. Find th and th percentiles for these ratios.

    asked by Anonymous
  182. Please Help!!!!!!

    Solve the Trigonometric equation for all solutions between [0,360)degrees. Sinx + 1 = 2.6635 Please, Please, Please Help Me!!!!!!!!!!

    asked by Misty
  183. Spanish/History

    My teacher told us to bring in a current event of a spanish speaking country so does haiti count cuz its a latin american country.?

    asked by Page
  184. Superglue fuming--fingerprints

    What is an amino acid? Why do they cause superglue to stick to my fingerprints on a cd when I place the cd in a plastic box covered with plastic wrap? I'm 9, so I really need just a simple answer. Thanks.

    asked by Matthew
  185. General chemistry

    How much energy is released by the combustion of 1.00 mol of octane, C8H18?

    asked by Caitlin
  186. physics

    A soft synthetic rubber ball of radius 9 cm is submerged to 7.5 m beneath the surface of a lake. a) If the bulk modulus of the rubber compound is Brubber = 9 x106Pa , what is the diameter of the ball at that depth? (b) A similar ball of equal radius, but

    asked by mc
  187. English

    Thank you. When presenting the flowers in Wordsworth's poem "Daffodils" I should therefore use the simple present: The flowers lie/are set beside the lake, beneath the trees. (and not "lay")

    asked by Henry2
  188. Math

    Light travels about 1 mile in 0.000005. If a spacecraft could travel at this speed,it would travel almost 0.000001 miles in 5 seconds. About how far would this spacecraft travel in 50 seconds?

    asked by Vanessa
  189. 6th grade spelling

    Here are the words you have to choose from: energy; construct; prediction; include; allegiance; acquaintance; disagreement; stereos; legend; voluntary; revision; igloos; conclude; kangaroo; zeros; argument; summary; decision; alligator; allowance. Here are

    asked by Mickey
  190. Math, Please Help!!!

    Solve the Trigonometric equation for all solutions between [0,360)degrees. 2Sinx + 1 = 2.6635. Solve for x. does x equal 56.28degrees and 123.72degrees?

    asked by Misty
  191. Geometry for Ms Sue?

    Referring to my last question.. Does 26.64 yd mean 26 2/3?

    asked by Mindy
  192. Science

    The list of words is: Nucleus, Mitochondria, Vacoule, Cell Wall. Which does not belong and why?

    asked by Anonymous
  193. science

    A disk and a ring, both of mass and radius, are placed at the bottom of an incline and allowed to roll down. Give an expression for the kinetic energy of the disk at the bottom of the incline in terms of mass, radius and translational velocity. how does

    asked by Dave
  194. economics

    Suppose that bicycles are produced by a perfectly competitive, constant cost industry. Which of the following will have a larger effect on the long-run price of bicycles: (1) a government program to advertise the health benefits of bicycling, or (2) a

    asked by Erika
  195. math

    The Lappans buy three large sandwich wraps to serve at a picnic. Nine people in all will be at the picnic. Show three different ways to cut the sandwiches so that each person gets an equal share.

    asked by zineddine kassou
  196. Physics

    1000 N man walks across an 8 meter plank that is suspended from two ropes(one on each side of the plank) that can only support 400N where will the man be when the plank breaks?

    asked by Catherine
  197. Geometry

    To find the perimeter of the triangle do I add all the sides together? L1 = 12.5in, L2 = 10.6 in, and L3 = 9.5 in Is the answer 32.6?

    asked by Mindy
  198. Economics

    The long-run supply curve for a good is a horizontal line at a price $3 per unit of the good. The demand curve for the good is QD = 50-2P. (a) What is the equilibrium output of the good? (b) A $1 excise tax is imposed on the good. What will be the long-run

    asked by Byron
  199. calculus - please help!

    If two resistors R1 and R2 are connected in parallel, then the total resistance R measured in ohms is given by 1/R=1/R1+1/R2 If the resistance of R1 and R2 are increasing at 330 and 660 ohms per second respectively, then the rate of increase of R when

    asked by archi
  200. Physics

    A 255 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an

    asked by Milica Bobic
  201. Economics

    The long-run supply curve for a good is a horizontal line at a price $3 per unit of the good. The demand curve for the good is QD = 50-2P. (a) What is the equilibrium output of the good? (b) A $1 excise tax is imposed on the good. What will be the long-run

    asked by Byron
  202. Chemistry

    Can you help me arrange P,Mg,N,Br,K in order of incrasing metallic character. Thank you.

    asked by Anonymous
  203. ELA

    Sort each spelling word by determining if it follows the V/CV pattern or the VC/V pattern. Write each spelling word in the correct column. Does the word tyrant go in the V/CV pattern-long or the VC/V pattern-short? V/CV PATTERN MEANS LONG AND VC?V PATTERN

    asked by JASON
  204. Art

    after u guys check the site and you reply the post about what I ask for also what title should I think of for my piece since Im drawing a japanese person for the pta reflection contest this I cant think of any

    asked by Laruen
  205. Physics

    Problem 17.8 Light from a sodium lamp (wavelenght = 589) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm . Part A - What is the spacing (in mm ) between the two slits? Express your answer using two significant

    asked by Paige
  206. Physics

    Problem 17.8 Light from a sodium lamp (wavelenght = 589) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm . Part A - What is the spacing (in mm ) between the two slits? Express your answer using two significant

    asked by Paige
  207. Calculus (Derivatives)

    Using the product rule, find the derivative of the following function: (x^1/2 cscx sinx).

    asked by Mishaka
  208. Physics

    Problem 17.8 Light from a sodium lamp (wavelenght = 589) illuminates two narrow slits. The fringe spacing on a screen 150 cm behind the slits is 4.0 mm . Part A - What is the spacing (in mm ) between the two slits? Express your answer using two significant

    asked by Paige
  209. Geometry

    Find the circumference of the circle (use 3.14) D=5.95yd Is the answer 18.683 yd?

    asked by Mindy
  210. physics

    A 0.4 kg mass attached to a spring is pulled back horizontally across a table so that the potential energy of the system is increased from zero to 200 J. Ignoring friction, what is the kinetic energy of the system after the mass is released and has moved

    asked by Anonymous
  211. Pre- Algebra

    Solve -3(2w-1) = 5w - 19. Please show all of your work.

    asked by Kameesha
  212. literacy

    What do you call a person that tills the soil? I need a 6 letter word with the 3rd letter being a r.

    asked by alexia
  213. Geometry

    What is the area of a parallelogram containing two 60 degree angles and parallel sides that measure 20 ft and 14 ft?

    asked by Anonymous
  214. Mathematics

    Mary's age is 2/3 that of Peter's. Two years ago Mary's age was 1/2 of what Peter's age will be in 5 years time. How old is Peter now? Explain your workings

    asked by Michael
  215. enlish/grammar

    I was wondering if these sentences are labeled right with either predicate noun or predicate adjective? Their presence was necessary in the far north country in the early days. preicate noun Now they are famous throughout the world. predicate noun They are

    asked by tyler
  216. physics

    A 220-kg crate rests on a surface that is inclined above the horizontal at an angle of 19.4°. A horizontal force (magnitude = 525 N and parallel to the ground, not the incline) is required to start the crate moving down the incline. What is the

    asked by Nick
  217. enlish/grammar

    Here are a few more of the predicate adjective or predicate noun sentences I need help with to see if I used the right one. Wildflowers look lovely on the hillsides. PA Mounties on horesback are a common sight. PN The Royal Canadian Mounted Police's

    asked by tyler
  218. geometry

    b is between a and c, d is between b and c, and c is between b and e. AE= 28,BC=10, and AB=BD=DC. what is the length of segment ce?

    asked by grumpy
  219. english

    at school i am reaing the kite runner as the class novel. i have one comprehension question im notsure how to answer. can somebody help me. the question is: the novel begins with a flashback. what do you think is its purpose? what do you learn about the

    asked by lalala
  220. calculus - please help!

    Water is leaking out of an inverted conical tank at a rate of 13200 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 9 meters and the diameter at the top is 7 meters. If the water

    asked by archi
  221. Algebra

    Use Cramer's Rule to solve each system of equations. a+b+5c=2 3a+b+2c=3 4a+2b-c=-3

    asked by Michael
  222. kite runner

    can someone help me answer in point form for these questions 1) describe Hassan physically? what is a cleft lip? 2) describe him by his relationship with amir? 3) what was his first word? why is that important? 4) how did he come into amir's life?

    asked by lalala
  223. human resources

    9) Having ambiguous training and development goals: A) is best when designing a training or development program, since many people can be stifled by following a stiff organizational procedure. B) is best when designing a training or development program,

    asked by marvin
  224. Physics

    Radio waves travel at the speed of light, which is 3.00 108 m/s. What is the wavelength for a FM station broadcasting at 105.9 MHz (the prefix M is "mega" and means 106)?

    asked by Richard
  225. Physics

    How long is a wavelength of infrasound with a frequency of 4 Hz?

    asked by Richard
  226. chemistry

    A student placed 10 g of Mg(OH)2 into a flask and added 500ml of water. The student took 100 ml of the Mg(OH)2 solution and reacted with HCl(aq). If 13.75 ml of 0.010M HCL reacted with the OH(aq), was was the concentration of hydroxide ion in the 100 ml

    asked by Anne
  227. Math

    Stacy requires $3,000 in three years to make a down payment on a new car. She will receive 8% compounded annually for the three years. How much must she invest today to have the $ 3,000 in three years? (a) $ 2,381.49 (b) $ 2,419.35 (c) $ 2,000.00 (d) $

    asked by Anonymous
  228. Trig

    Im having serious issues with verifying Trig. identities. Please help! Here is an example: (tanX-secX)^2= 1-sinX/1+sinX

    asked by Rachel
  229. Physics

    What is the fundamental frequency for a 62 cm banjo string if the speed of waves on the string is 470 m/s?

    asked by Richard
  230. geometry

    x is less than y and 20 less than z. write a system of equations and find the measures of the three angles

    asked by davonte
  231. physics

    does F=ma predict the acceleration of the system accurately?

    asked by kim
  232. math

    what are twin primes?

    asked by smileyface
  233. arithmetic

    Find 4 arithmetic means between -root(5) and 12 root (5)

    asked by Anonymous
  234. Math

    Jill said that an angle is made of two rays. Is she correct? Explain.

    asked by Dyna
  235. math

    how about (7,9)

    asked by smileyface
  236. 6th grade math

    which is bigger? 17/19 0r 0.85

    asked by Kate
  237. physics

    A 4.85-kg block is placed on top of a 12.0-kg block that rests on a frictionless table. The coefficient of static friction between the two blocks is 0.645. What is the maximum horizontal force that can be applied before the 4.85-kg block begins to slip

    asked by zach
  238. physics

    i need help i don't understand how to do this problem so please help me. A student lifts a 5kg chair 0.8m off the floor, walks at a constant speed for a distance 10m, and then puts the chair back down on the floor. calculate the total amount of work done

    asked by pinky
  239. chemistry

    A mole of 1 gallon cans of paint could cover every square inch of the surface of how many planets the size of the earth?

    asked by Rose
  240. human service

    Locate three professional business groups that are reputable in your chosen field (example: social work field has the National Association of Social Workers, Clinical Social Work Association, Association of Social Work Board). State whether or not they

    asked by Patiance
  241. calculus

    fourth degree polynomial p(x) whose graph is symmetric about the y-axis, and which has a y-intercept of 10, and global maxima at (1,13) and (-1, 13).

    asked by jay
  242. Chemistry

    5.00g of an unknown solid was heated to 99.7 degrees C and placed in a calorimeter with 1.25L H20. The initial temp of the water was 25.0 degrees C. During the experiment, the temperature of the water rose to 63.5 degrees C. what is the specific heat of

    asked by Samantha
  243. Math

    Eugene has three times as many angelfish as clownfish in his aquarium. If he has a total of 48 fish, how many are angelfish? a) 36 b) 32 c) 16 d) 12

    asked by Mia
  244. fraction 10-1 math

    camp big trees has 3 red canoes and 4 blue canoes. what fraction of the conoes are red ?

    asked by megan
  245. fraction 10-1 math

    camp big trees has 3 red canoes and 4 blue canoes. what fraction of the conoes are red ?

    asked by megan
  246. geometry

    A wire 10 meters ong is to be cut into two pieces. One piece wil be shaped as a square, and the other piece will be shaped as a circle. (piece one is 4x, piece two is 10-4x) a)Express the total area A enclosed by the pieces of wire as a function of the

    asked by chris
  247. chemistry

    Fe3+ (aq), Ca2+ (aq) and Ba2+ are all present in the same solution. Fully describe a procedure whereby you could separate these ions from one another

    asked by Kali
  248. Math

    A bakery sold twice as many cookies in March as in April.Their total sales for the two months were 564 cookies.How many cookies were sold in April? a) 376 b) 282 c) 234 d) 188

    asked by Mary
  249. Chemistry

    A chemical reaction takes place in a container of cross-sectional area 100 cm2. As a result of the reaction, a piston is pushed out through 19 cm against an external pressure of 630 torr. What is the value for w for this reaction? (Sign does matter.)

    asked by Broy
  250. History of America

    This is due tonight! Please help! 18.How did America’s Involvement change after the fall of France and the air war against Britain? Congress declared war on Germany There was no formal change of policy American advisors trained the resistance The

    asked by Anonymous
  251. kite runner

    What does it mean to be Hazara, Shi'a muslim, afghanistan's majority group? Who, in the story thus far, is hazara? the sparknotes not really working out for me

    asked by lalala
  252. math

    Mike has made a rectangle using 48 square tiles. If he adds the length and width of his rectangle together he gets a prime number. What is the length and width of the rectangle?

    asked by Ryan
  253. Pre- Algebra

    Solve x - 5/9

    asked by Kameesha
  254. physics

    Water is lifted out of a well 38.0m deep by a motor rated at 1.00hp. assuming70% efficiency, how many kilograms of water can be lifted in 1 min?

    asked by bec
  255. bio

    How do we determine that prophase is the longest stage of mitosis?

    asked by Nicole
  256. physics

    a boy stands on a cliff overlooking a lake below. He throws a rock at an initial velocity of 8.0m/s,at an angle 25 degrees above the horizontal. The lake's surface is 4.5 m lower than the point the rock was released. Find the speed of the rock just before

    asked by bec
  257. Web Development @ CSS

    Write some text in a paragraph and then using css capitalize the first letter in every word in the paragraph.

    asked by Mike Moskvich
  258. physics

    a child on a beach kicks a beach ball, giving it an initial velocity of 4.0m/s.It was sitting on the ground when given the kick. The ball lands on the beach 5.0 m away with a speed of 2.2 m/s just before it hits. the final landing place is at the same

    asked by bec
  259. physics

    A child on a beach kicks a beach ball, giving it an initial velocity of 4.0 m/s. It was sitting on the ground when given the kick. The ball lands on the beach 5m away and closer to the ocean, with a speed of 1.6m/s just before it hits. the final landing

    asked by bec
  260. physics

    A 0.060-kg handball is thrown straight toward a wall with a speed of 9 m/s. It rebounds straight backward at a speed of 6.7 m/s (a) What impulse is exerted on the wall? magnitude 0.942 kg·m/s (b) If the ball is in contact with the wall for 3.0 ms, what

    asked by Amanda
  261. chemistry

    Calculate the morality of the solution 0.450 mol of Na2S in 1.75 L of solution

    asked by Betty
  262. social studies

    List three states that don't have ports on the atlantic ocean

    asked by charles
  263. 7th grade science

    what are two ways a population may increase in number? what is the main way? Please help!!! Thank you!!!

    asked by saranghae12
  264. Spanish

    Please check-I have to rewrite with an indirect object pronoun 1. Escribo una carta a mi abuela. Rewritten as :Le escribo una carta a mi abuela. 2.Mando una tarjeta postal a mis amigos. Rewritten as:Les mando una tarjeta postal a mi amigos.

    asked by Ben.
  265. physics

    A weight (with a mass of 71 kg) is suspended from a point near the right-hand end of a uniform boom with a mass of 51 kg . To support the uniform boom a cable runs from this same point to a wall (the left-hand vertical coordinate y=7 x=6) and by a pivot on

    asked by PHYSICS HELP!!!!
  266. trig

    What is inverse cot of negative radical 3/3

    asked by damian
  267. Science

    what are the common SI unit for volume?

    asked by Laruen
  268. Chemistry

    How many milliliters of a 1.95 M LiCl solution contain 18.2g of LiCl?

    asked by Rebecca
  269. Spanish

    A mi profesor le duele la garganta. If someone has a pain in the throat would this be how I would write it with indirect pronoun?? Also If there was a pain in the mouth and you went to dentist could I say: A ti te duele los dientes or would I say A ti te

    asked by Ben.
  270. math

    How can estimating help you add two-digit numbers?

    asked by nick
  271. Hitler Comes to Power

    What did Prime Minister Mackenzie King think of Hitler? I believe King thought that Hitler was a good guy, and that he didn't have bad intentions. Anything else?

    asked by Anonymous
  272. math - earn interest

    invest money that pays 6.3% interest/year compounded quarterly. How long should invest if want to double initial investment?

    asked by BJ
  273. physics

    Determine the normal force for a laundry basket with a mass of 4.3 kg in each of the following situations

    asked by kkll
  274. St. Louis

    Can someone please simplify this for me, just need a simple definition for St. Louis, ocean liner. -Over 900 Jewish refugees on board, was refused permission to dock when it appeared off the east coast of Canada. The ship was forced to return to Europe,

    asked by Anonymous
  275. algebra

    50,000 is the amount of a loan needed to purchase a restaurant location. After researching to find the best interest rate, you find that banks for small business offer the best interest rate at 9% compounded monthly for 7 years. After making a monthly

    asked by Missy
  276. 7th grade science

    what are two ways a population may decrease in number? Explain the difference between direct and indirect observation in regard to determining population size. Please help!!! Thank you!!

    asked by saranghae12
  277. calculus

    Why do we end up with f(x) instead of f(t) on the second fundamental theorem of calculus?

    asked by Jose
  278. physics

    In a car crash, a 44 kilogram passenger moving at 15 meters per second is brought to rest by an air bag during a 0.10 second time interval. What is the magnitude of the average force exerted on the passenger during this time?

    asked by Nashaly
  279. physics

    Two blocks with masses m1 = 10.9 kg and m2 = 79.3 kg, shown in the figure, are free to move. The coefficent of static friction between the blocks is 0.66 but the surface beneath m2 is frictionless. What is the minimum force F required to hold m1 against

    asked by lisa
  280. english

    how do you explain kayy perry's metaphor: " do you ever feel alreay buried deep?" in her song fireworks.

    asked by lalala
  281. Algebra

    Flying with wind, a plane flew 800 miles in 5 hrs. Flying against the wind, the plane flew the same distance in 8 hrs. Find the still air speed and wind speed.

    asked by Christian
  282. Calculus

    Find an equation of the tangent line to the curve at the given point. y = 6e^x cos x, (0, 6)

    asked by Kris
  283. math

    What is the number? It has seven digits. The value of one of its digits is 600. Two of the digits in the thousands period are 7's and the third one of them has a value of 3 x 10,000. The digit withe greatest place value in the number is between four and

    asked by shawnna
  284. chemistry

    How many grams of NaOH (MW = 40.0) are there in 100.0 mL of a 0.275 M NaOH solution?

    asked by mary
  285. Math

    At what time do the hands of a clock form an acute angle?

    asked by Khrys
  286. english

    1. verb tense 2. main verb past tense form 3 regular or irregular I will wash those dirty dishes.

    asked by stephanie
  287. physics

    A uniform 7.1 m tall aluminum ladder is leaning against a frictionless vertical wall. The ladder has a weight of 272 N. The ladder slips when it makes a 57.0degrees angle with the horizontal floor. Determine the coefficient of static friction between the

    asked by PHYSICS HELP!!!!
  288. math

    the same cereal costs $3.99 per box at one store, $3.25 at another store and $3.59 per box at the third store what is the average price per box of cereal? solve using an algebra form. I know how to get the answer but what algebreic form would i use?

    asked by jill
  289. MATH HELP!

    find all possible values of the common ratio of the geometric sequence a, b, 6, ... if a+b=1

    asked by Katie
  290. calculus

    this is the last problem on my homework and I JUST CANT GET THE RIGHT ANSWER!! Help. :/ limit as x -> -infinity of: (1-(3/x))^2x

    asked by Max
  291. chemistry

    Here we go: when the following nuclear reaction is completed, the missing element will be: ___+ 4^He ---> 2 v0 1^n+ 244^Cf Okay, so im given the choices of 242^Cm, 242^Am, 240^Es or 242^Bk.... I already determined that it's not 240 Es (or at least i think

    asked by Anonymous
  292. Math

    Suppose 8 out of every 20 students are absent from school less than five days a year. Predict how many students would be absent from school less than five days a year out of 40,000 students.

    asked by John
  293. statistics

    select a scale for the data on average highs if the lowest tempreture is 72 and the highest is 88: (A)70 to 90 (B) 69 to 90) (C) 60 to 100 (D) 60 to 80 ?

    asked by Anonymous
  294. Hitler Comes to Power

    King thought that Hitler was sincere, and genuine. King was impressed by Hitler, he enjoyed talking with him, and he seemed like a gentleman, king thought that Hitler was a good role model for his country, and men. He found Hitler to be just like him. Ms.

    asked by Anonymous
  295. Finance

    Bond value and time--Constant required returns Pecos Manufacturing has just issued a 15-year, 12% coupon interest rate, $1,000-par bond that pays interest annually. The required return is currently 14%, and the company is certain it will remain at 14%

    asked by Mary
  296. Calculus

    Find the rectangle of largest area that can be inscribed in a semicircle of radius R, assuming that one side of the rectangle lies on the diameter of the semicircle. NOTE: Let L denote the length of the side that lies on the diameter and H denote the

    asked by John
  297. math

    tom family had three daughters and their ages added up to 11..the product is 24 how old are the children

    asked by beth
  298. trig

    find all the values of x that satisfy the equation: 2sin^2(x) + 1 = 3sin(x).

    asked by lisa
  299. L.A.

    in an essay compare and contrast the childhood episodes of the authors of "no gumption" and "barrio boy."

    asked by Alecia
  300. MATH

    Find the value of A + B if the A is the first term and B is the common difference of the sequence whose 4th term is 3 and 20th term is 35

    asked by Katie
  301. chem 1

    a NaOh solution has a concentration of about 0.11M.How many grams of KHP would have to be used to require NaOH solution to reach the endpoint

    asked by karen
  302. chemistry

    Balance the following redox reaction using the half reaction method: NaIO3+KI==> I2+H20+Na(+1)+K(+1)

    asked by steve
  303. Science

    Calulate the force needed to accelerate a 2,300 kg mass at 5.5m/s/s acceleration.

    asked by Brenda
  304. math

    illustraded 1.2 multiplied by 1.4

    asked by adolfo
  305. geometry

    line CD is a median of angle ABC and M is the centroid, If CM = 14 what is CD

    asked by jordan
  306. Math C30

    In steps how do you go from: y = 25cos pi/200x + 30 to get the answer 44.695

    asked by Don
  307. calculus

    antiderivative f''=3x+5sin(x) f(0)=4 f'(0)=4 Find f(x) I got (1/2)x^3-5sin(x)+(15/2)x+(7/2), but it was wrong

    asked by Anonymous
  308. algebra - half lives

    Half-life of tritium is 12.32 years. Write decay equation as N(t) = N(subzero)e^(-rt) where t is the time in days, N(subzero) is the starting amt of tritium and N(t) is amt of tritium at time t. don't know how to find -r.

    asked by Tritium
  309. business communication

    Which of the following is not a good guideline to follow when writing to international audiences? a. write in the reader's language if you have any knowledge of the language at all; doing so greatly increases goodwill, even if you make mistakes. b. Be

    asked by pat
  310. Chemistry

    (Qualitative Analysis) I know this is vague, but if i had a solution of unknown cations that appear light purple, what could be the possible list of cations in the solution? I thought Mn, Ag, Cu after doing my own tests, but i am uncertain. Just on a

    asked by Kevin
  311. GEOMETRY

    LINE CD IS MEDIAN OF TRIANGLE ABC AND M IS THE CENTROID.MMIF CM = 14 WHAT IS CD

    asked by jordan
  312. Math

    in a 30degree-60degree right triangle, the length of the side opposite the 60 degree angle is 8.3m. How long is the hypotenuse?.

    asked by Mindy
  313. Introduction to Psychology

    Sound that impinges on the inner ear and the auditory nerve arrives as a fairly meaningless stimulus. At this point, it should be viewed as: a. perception. b. sensation. c. an auditory stimulus item. d. free of environmental noise. I think it is either a,

    asked by Anonymous
  314. chemistry

    the energy required to break one mole of chlorine- chlorine bonds in Cl2 is 242 kj/mol. what is the longest wavelength of light capable of breaking a single Cl-Cl bond?

    asked by adly
  315. Introduction to Psychology

    Kara heard the noise, but could not understand what was being said. Perhaps it was simply the humming of the machines that she heard? She was uncertain whether she should move toward or away from the sound. Kara is having difficulty with: a. sensation. b.

    asked by Anonymous
  316. Pre Algebra

    I have work problem that I am unable to solve. Each hour Maggie baby sits she charges $2 plus .75 for each child. Write an equation for Maggie's hourly rate h in terms of the number of children c. Solve the equation to find the hourly rate when Maggie baby

    asked by Jared
  317. physics101

    A uniform 7.1 m tall aluminum ladder is leaning against a frictionless vertical wall. The ladder has a weight of 272 N. The ladder slips when it makes a 57.0degrees angle with the horizontal floor. Determine the coefficient of static friction between the

    asked by physics
  318. Math C30

    What's next? Solve: cosx(tanx + sqroot3) - sqroot3/2(tanx-sqroot3) Provide exact answers .. help

    asked by Don
  319. Science

    Who else might buy oil-eating bacteria besides oil spill cleanup companies?

    asked by Jan
  320. chemistry

    determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n=2 and absorbs a photon of light with a frequency of 4.57 x 10^14 Hz.

    asked by adly
  321. Calculus

    Please help me with the following 2 questions. 1. Find the area of the curved surface of a right-circular cone of radius 6 and height 4 by rotating the straight line segment from (0,0) to (6,4) about the y-axis. 2. Use the Maclaurin polynomial of degree 4

    asked by Sara
  322. Chemistry

    Calculate the solubility of AgCl in the following solution: 100mL of .004 M CaCl2

    asked by Kevin
  323. trig

    whats 21° 44' 3" as a decimal to the nearest thousandth of a degree

    asked by trey
  324. spanish

    I have to translate this to indirect style is this correct? Original:Pero cien años después, las personas negras todavía no son libres. Cien años después, la vida de las personas negras sigue todavía tristemente atenazada por los grilletes de la

    asked by Dan
  325. calculus

    . A project management consultant estimated that if a particular project was completed, that t years after its date of completion, P thousand persons would be direct beneficiaries of the project, where P (t) = t3/3 - 5t2 +20t, 0

    asked by Jade
  326. maths for social science

    . A project management consultant estimated that if a particular project was completed, that t years after its date of completion, P thousand persons would be direct beneficiaries of the project, where P (t) = t3/3 - 5t2 +20t, 0

    asked by Jade
  327. algebra

    A perfect minor wholetone is a frequency rtio of 10:9. A perfect major wholetone is a frequency ratio of 9:8. Are these noticeably different from an equal temper wholetone? (200 cents)

    asked by Math musician
  328. math

    construct a rectangle wxyz with wx =6 cm and wy =10 cm with steps

    asked by mansi
  329. math

    construct a rectangle wxyz with wx =6 cm and wy =10 cm with steps

    asked by mansi
  330. math

    local store going out of business. Owner decreases all prices by 5% every day until all items are sold. Customer wants dress priced at $2500. How long does she have to wait for repeated discounts to reduce price of dress to less than $700?

    asked by fashionista
  331. MATH

    X-4=300 HOW DO I FIND THE REAL NUMBER FOR X

    asked by angela