Questions Asked on
October 16, 2010

  1. trig

    a hedgehog wishes to cross a road without being run over. he observes the angle of elevation of a lamp post on the other side of the road to be 27 degrees from the edge of the road and 15 degrees from a point 10m back from the raod. How wide is the road??

    asked by Fiona
  2. Engineering Kinematic

    The particle travels along the path defined by the parabola y=0.5(x^2). If the component of velocity along the x-axis is v=5t [m/s], determine the particle's distance from the origin and the magnitude of its acceleration when t=1s. The initial condition is

    asked by Claire
  3. phy

    A grinding wheel 0.62 m in diameter rotates at 2400 rpm. (a) Calculate its angular velocity in rad/s. rad/s (b) What are the linear speed and acceleration of a point on the edge of the grinding wheel? linear speed m/s radial acceleration m/s2

    asked by mas
  4. phy

    A grinding wheel 0.62 m in diameter rotates at 2400 rpm. (a) Calculate its angular velocity in rad/s. rad/s (b) What are the linear speed and acceleration of a point on the edge of the grinding wheel? linear speed m/s radial acceleration m/s2

    asked by mas
  5. mathematics

    it takes 12 men to make 12 tables in 9 hours. how long will it take 8 men to make 32 tables?

    asked by kelsey
  6. Chemistry

    Did I answer these correctly? 1. What is the total number of principal energy levels or shells in an atom with an atomic number of 30? a. 3 b. 4 c. 5 d. 6 I choose b. 2. The electron configuration of an atom in the ground state is 2-4. The total number of

    asked by timmy123
  7. chemistry

    0.5123 g KHP sample was dissolved in about 25 mL of distilled water, and titrated to the phenolphthalein endpoint with 28.75 mL of a sodium hydroxide solution. Calculate the molar concentration of the hydroxide solution

    asked by Cynthia
  8. College Physics

    A golf ball (mass 0.045 kg) is hit with a club from a tee. The plot shows the force on the ball as a function of time in milliseconds. One millisecond is 10-3 seconds. What is its speed right after the hit?

    asked by Kaleigh
  9. ALgebra

    tom scores 83,88,75, and 90 on the first 4 tests in algebra. what does he need to get on the 5th test to have an average of 85?

    asked by matt
  10. chemistry

    How many moles of O2 are needed to react with 2.90 moles C2H2

    asked by Nic
  11. phy

    An automobile engine slows down from 3500 rpm to 1100 rpm in 4.5 s. (a) Calculate its angular acceleration, assumed constant. rad/s2 (b) Calculate the total number of revolutions the engine makes in this time. rev I got answer for part a that is

    asked by mas
  12. Math - Derivative of a polynomial function(check)

    The red squirrel population, p, in a neighborhood park can be modelled by the function p(t)= srqt(210t+44t^2), where t is time in year. a) Determine the rate of growth of the squirrel population at t= 2years Ans: find the 1st derivative and substitute 2 in

    asked by Anonymous
  13. Math

    Jim Tree borrowed $1,000 at 10 percent for one year. He paid a $45 processing fee and $100 in interest. He calculated the APR to the nearest tenth.

    asked by Ram
  14. Chemistry

    The net ionic equation for ALL aqueous reaction of strong acids and strong soluble bases that form soluble salts is 1. the formation of H2O from H+ and OH−. 2. the formation of water from the ele-ments. 3. the formation of water and the corre-

    asked by Elva
  15. Physics Honors

    A car travels due east with a speed of 60.0 km/h. Rain is falling vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 45.0° with the vertical. Find the velocity of the rain with respect to the car

    asked by Kristen
  16. Math - Derivative of a polynomial function

    The population, p in thousands of bacteria colony can be modelled by the function p(t)=200+20t-t^2, where t is the time, in hours, t is greater than or equal to zero. a) Determine the growth rate of the bacteria population at each of the following times.

    asked by Anonymous
  17. chemistry

    what is the empirical formula for a compound whose molecular formula is C2Cl6

    asked by angie
  18. Math - average rate problems(check + help)

    The total cost, c, in dollars of operating a factory that produces kitchen utensils is C(x)=0.5x^2+40x+8000, where x is the number of items produced in thousands. a)Determine the marginal cost of producing 5000itmes and compare this with the actual cost of

    asked by Anonymous
  19. Chemistry

    In the reaction 2Mg + SnCl4 −> 2MgCl2 + Sn , how many electrons are involved in the conversion of SnCl4 to Sn? 1. three 2. one 3. four 4. two

    asked by Elva
  20. teacher aide

    when are children first developmentally ready to begin learning science

    asked by mike
  21. English

    I need the chapter summary for 'Strange Objects' by Gary Crew ASAP!!! Please help me!

    asked by Kiara
  22. Chemistry

    Write the net ionic equation for this reaction occurring in water: Sodium phosphate and calcium chloride are mixed to form sodium chloride and calcium phosphate. 1. No reaction occurs. 2. 2Na3PO4 + 3Ca2+ -> 6Na+ + Ca3(PO4)2 3. 2 PO3−4 + 3Ca2+ ->

    asked by Elva
  23. Chemistry

    NiF2(aq)+Fe2(SO4)3(aq) ==NiSO4 (aq) + FeF3 (s) balance each of the following chemical equations. Express your answer as a chemical equation. Identify all of the phases in your answer. Can help me refresh my memory ...

    asked by Lisa
  24. englsi

    My english is very very bad ,please helpm me to fix this paragraph. To catch the king interest, every night she must come up with unique and fresh idea. Mercy and Wisdom is very important elements in her stories and how different characters of the stories

    asked by Anonymous
  25. Chemistry

    Given the following list from the activity series of metals (from most active to least active) K, Na, Al, Mn, Cr, Cd, Co, Pb, Hg which reaction would you NOT expect to occur? 1. All of the listed reactions will occur. 2. Na(s) +Mn2+(aq) -> Na+(aq) +Mn(s)

    asked by Elva
  26. Chemistry

    Chemistry equilibrium? Consider the reaction 2NO(g) + O2(g) = 2NO2(g) at 430C an equilibrium mixture consists of 0.020 mole of O2, 0.040 mole of NO, and 0.96 mole of NO2. Calculate Kp for this reaction given that the total pressure is 0.20 atm. I used

    asked by Ashley
  27. chem

    Lithium hydride reacts with water as follows. LiH(s) + H2O(l) -->LiOH(aq) + H2(g) During World War II, U.S. pilots carried LiH tablets. In the event of a crash landing at sea, the LiH would react with the seawater and fill their life belts and lifeboats

    asked by amber
  28. chemistry

    calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius? Please i don't understand any of this? help please?

    asked by Shayla
  29. statistics/please check calculations

    questions reads as follows: sat scores around the nation tends to have a mean score around 500, a standard deviation of 100 points and are approximately normal distribution. a person who scores 600 on the sat has approximately what percentile rank within

    asked by mary
  30. 9th grade

    if 28x^3-36x^2+4x is divided by 4x then the quotient will be

    asked by LaTrina
  31. math

    find a such that f(x)= ax2-4x+3 has a maximum value of 12

    asked by bob
  32. Manageral Economics (Economyst Only Please)

    Bridget has a limited income and consumes only wine and cheese; her current consumption choice is four bottles of wine and 10 pounds of cheese. The price of wine is $ 10 per bottle, and the price of cheese is $ 4 per pound. The last bottle of wine added 50

    asked by raja
  33. phy

    A centrifuge rotor rotating at 13,000 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.30 m·N. If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many

    asked by mas
  34. physics

    A 0.720 kg snowball is fired from a cliff 8.10 m high. The snowball's initial velocity is 14.2 m/s, directed 30.0° above the horizontal. (a) How much work is done on the snowball by the gravitational force during its flight to the flat ground below the

    asked by VitaX
  35. physics

    A 506 g block is released from rest at height h0 above a vertical spring with spring constant k = 500 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 18.4 cm. How much work is done (a) by the block

    asked by VitaX
  36. CHEMISTRY

    how many mls of glycerol (FW= 92.1; density=1.26g/ml) must be used to make 250ml of a 0.15 M solution

    asked by lulu78
  37. College Chemistry

    an iron ore sample was dissolved in Hydrochloric acid the iron was obtained as Fe2+. The solution was titrated with 41.08 mL of a 0.458 M solution of Ce+. Calculate the mass of iron in the original ore sample.

    asked by Laura
  38. physics

    Here were two tricky questions. Please provide steps. Answers are not necessary (since these are practice questions for an exam). 1.) The centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a

    asked by jo
  39. Physics

    A car mass of 1330 kg is traveling at 28.0 m/s. The driver applies the brakes to bring the car to a rest over a distance of 79.0 m. Calculate the retarding force.

    asked by Emma
  40. Physics

    A uniform solid sphere of mass M and radius R is rolling without sliding along a level plane with a speed v = 2.70 m/s when it encounters a ramp that is at an angle è = 20.4° above the horizontal. Find the maximum distance that the sphere travels up the

    asked by Donny
  41. probability

    A company's records indicate that on any given day, 1% of their day shift employees and 2% of the night shift employees will miss work. Sixty percent of the employees work the day shift. a. What percent of employees are absent on any given day? b. A

    asked by lisa
  42. personification poem

    for english class i have to write a poem personifying something. I chose to personify a picture in a picture frame. I am not at all good at poems and was wondering if you guys could read mine and tell me what changed i should make and if its really bad and

    asked by claire
  43. physical education

    are the anatomical names for the following right?: skull-cranium shoulder blade-clavicle spine-sternum collar bone-scapula thigh bone-femur fingers-phalanges can you please check if the names are correct

    asked by chelsea
  44. physics

    really confused, A 2kg box is sliding east at 50m/s on a frictionless floor when it collides with a 4kg box sliding east at 10m/s. After the collision, the 2 kg box is sliding east at 20m/s and the 4kg block is sliding east at 25m/s. Calculate the

    asked by justin
  45. math

    find a such that f(x)= ax2-4x+3 has a maximum value of 12

    asked by bob
  46. geography

    i am located between the great lakes and the gulf of st. lawrence

    asked by draculaura
  47. Chemistry

    A mixture of 0.47 mole of H2 and 3.59 moles of HCl is heated to 2800C. Calculate the equilibrium partial pressures of H2 Cl2 and HCl if the total pressure is 2.00 atm. For the reaction Kp is 193 at 2800C. H2(g) +Cl2(g) = 2HCl (g) I know that I need to find

    asked by Ashley
  48. math

    a car uses 25 litres of petrol to travel 200 miles. how many litres of petrol will the car use to travel 450 miles?

    asked by tia
  49. chem lab

    hi im doing a post lab sheet for chem class. and im having a little trouble. i have: temperature 12.6 C -> 285.6 K Time 816 sec but im supposed to find 1/T(K) it looks like my classmate did this: 12.6 x 285.6 = 3598.56 however they gave me the response to

    asked by chem
  50. calc

    Average daily temp,y, is y=45-23cos(2pi(x-32)/365), where x is time in days, x=1, corresponds to Jan 1 and y is temp in degrees F. Determine the period of the function. Determine critical numbers, over one period. Determine relative extrema, what does

    asked by t
  51. English 2

    This is my last exam, and I'm done with English! 'At different times in A Separate Peace the weather seems to signal a change in the atmosphere of the action. Make a list of three specific weather descriptions from the novel; Use chapter references along

    asked by mysterychicken
  52. chemistry

    what is the equation for C6H12O6+NaOH+Cu(OH)2 C6H12O6+AgNO3+NH4OH AgNO3+NH4OH+ galactose when heated

    asked by flans
  53. Chemistry

    3 M HCl solution was used to generate CO2 from the CaCO3 . What will be the effect on the value reported for the molar volume of CO2 if 6 M HCl was used instead (too high, too low, no difference)? Explain.

    asked by Megan
  54. Chemistry

    A 70.8mL sample of "wet" O2(g) is collected over water at 29.9 degrees Celsius at a barometric pressure of 743 mmHg. The vapour pressure of water at 29.9 degrees Celsius is 31 mmHg. What is the mole fraction of O2 in the gas collected? So i found the

    asked by Jon
  55. Chemistry

    If aqueous hydrofluoric acid is reacted with sodium hydroxide, which of the following substances are in the net ionic equation? 1. fluoride ion, hydronium ion, and water 2. fluoride ion, hydroxide ion, hydronium ion, and water 3. hydrofluoric acid, sodium

    asked by Elva
  56. math

    solve the simultaneous equations to find the coordinates of the point of intersection for the pair of lines of the simultaneous equations. Then check the answer by graphing the equations 3x-y=-4 2x-y=0

    asked by Lauren
  57. college chemistry

    An electrical heater is used to add 19.50 kJ of heat to a constant-volume calorimeter. The temperature of the calorimeter increases by 4.50°C. When 1.75 g of butanol (C4H9OH) is burned in the same calorimeter, the temperature increases by 14.58°C.

    asked by jojo
  58. math

    Urban Community College is planning to offer courses in Finite Math, Applied Calculus, and Computer Methods. Each section of Finite Math has 40 students and earns the college $40,000 in revenue. Each section of Applied Calculus has 40 students and earns

    asked by liz
  59. 7th grade

    What is a good definition of mercantilism? I don't understand when all the definitions talk about economic systems of national wealth. Thank you!

    asked by Isabelle
  60. physics

    Four people, each with a mass of 72.7 kg, are in a car with a mass of 1110 kg. An earthquake strikes. The driver manages to pull of the road and stop, as the vertical oscillations of the ground surface make the car bounce up and down on its suspension

    asked by tom
  61. math

    A builder needs to connect a partially built house to a temporary power supply. On the plan, the coordinates of the house are (50,114) and the power supply is at (147,82). what is the least amount of cable needed? why is it likely that the builder will use

    asked by Ted
  62. Math

    Okay so the question is: "Three people are cheering simultaneously. Measured individually, the cheers are 80dB, 80dB, and 50dB. What would the cheering measure totally? Use your knowledge of logarithms to solve." So the formula we were given a few days ago

    asked by Anonymous
  63. Chemistry

    When calcium oxelate is treated with an acidic solution of potassium permanganate, the following reaction occurs: CaC2O4(s) + MnO4-(aq) = Ca+2(aq) + CO2(g) + Mn+2(aq) Balance the equation.

    asked by Sheila
  64. algebra

    Eric has twice as much money as Marcia, who has $175 less than Laurel. But Laurel has as much money as Eric and Marcia have together. How much money does each person have?

    asked by Anonymous
  65. chemistry

    What about this question? Calculate the mass (g) of PbSO4 that will dissolve in 2000 mL of 0.0694 M K2SO4 solution. The equation represents the solubility process. PbSO4 (s) Pb2+ (aq) + SO42- (aq) Ksp = 1.7 x 10-8

    asked by Confused
  66. 9th grade physical science

    a train moving west at a velocity of 15m/s is accelerated steadily to 17m/s over a 12 second period what is the acceleration of the train

    asked by cindy
  67. algebra

    an item on sale for 30% off costs $179.99. what was the original price?

    asked by man
  68. Foods

    what is used to knead dough and to roll pastry ? what is used to cook some less tender meats,to steam puddings and to asselerate the cooking time of foods? what is used to sift flour before measuring? what kind of knife is used to very finely slice or

    asked by Rose
  69. calculus

    Locate the discontinuities of the function. y = 2/(1 + e^(1\/x))

    asked by Tersa
  70. statistics

    use the normal distribution to approximate the desired probability. find the probability that in 200 tosses we will obtain at least 40 fives.

    asked by monique
  71. chemistry

    What is the molarity of an unknown acid if 40.5 ml of the acid can be titrated to an end point by 20.5 ml of 0.2250 M NaOH?

    asked by bev
  72. statistics

    sat scores around the nation tend to have a mean score of about 500, a standard deviation of 100 points and are approximately normal distribution. a person who score 600 on the sat has approximately what percentile rank within the population? show all

    asked by mary
  73. chem

    A sample of nitrogen gas (N2) kept in a container of volume 13.3 L and at a temperature of 22.3°C exerts a pressure of 1.1 atm. Calculate the number of grams of gas present.

    asked by nicole
  74. algebra

    Mei's salary starts at $16,000 per year with annual raises of $1500. Janet's starting salary is $19,300 with annual raises of $950. After how many years will the two women be earning the same salary?

    asked by Anonymous
  75. college chemistry

    What volume (in Liters) of hydrogen must react to form 17.0L of ammonia according to the following balanced equation: N2(g) + 3H2(g) --> 2NH3(g) Assume an excess of N2 and that all are at the same temperature and pressure.

    asked by christine
  76. physics

    A pair of blocks, one 3 times as massive as the other, are connected by a compressed spring. When the spring is released, the blocks fly apart. Compared to the heavier block, how many times faster does the lighter block accelerate?

    asked by Carlos
  77. chemistry

    How many moles are there in 250cm3 0f 4M sodium chloride solution

    asked by Gary
  78. College Physics

    Some kid (mass 20 kg) jumps with a velocity of 3.2 m/s horizontally off some steps (height 0.55 m) onto his heavy duty skateboard (mass 3 kg, height 0.03 m), which is initially at rest. How fast will he be skating? I don't where to start.

    asked by Sam
  79. Manageral Economics (Economyst Only Please)

    In an article about the financial problems of USA Today, Newsweek reported that the paper was losing about $ 20 million a year. A Wall Street analyst said that the paper should raise its price from 50 cents to 75 cents, which he estimated would bring in an

    asked by raja
  80. teacher aide curriculum content

    what is a good way to motivate elementary students to learn math

    asked by mike
  81. geography

    Which African countries does the Tropic of Capricorn pass through? My answer is the African countries of Namibia, South Africa, Mozambique, Botswana and Madagascar. Is this correct? My Mom said Madagascar is not an African country. I told her she is wrong

    asked by Reed
  82. math

    two trains leave at the same time from stations 284 miles apart, traveling toward each other at 33mph and 38 mph respectively. how long will it take them to meet?

    asked by mateo
  83. RES 341

    A sample of 300 is taken and the sample mean is computed to be 7.65 and the sample standard deviation is 5. Assume the data is ratio level. Compute the 95% confidence interval on the mean. Compute the 3.9% confidence interval on the mean Which confidence

    asked by Meh
  84. algebra

    The greater of two consecutive integers is 15 more than twice the smaller. Find the integers.

    asked by Krysta
  85. Science

    Explain newtons first law of motion

    asked by Denise
  86. Math

    Question:Meg wants to install square tiles in a rectangular room. How can identifying common factors help her decide if any tiles will need to be cut? Use numbers to help you explain.

    asked by Pratigya
  87. Geometry

    Use the Law of Detachment to write a valid conclusion for the given information. 1.If two angles are supplementary, then their measures have a sum of 180. 2.Angle X and Angle Y are supplementary. -What do they mean when they ask me to write a valid

    asked by Shadow
  88. INTRODUCTORY ALGEBRA

    FOR HOMEWORK I HAVE TO DO A NUMBER TRICK BY PICKING A NUMBER ADD 5 DOUBLE THE RESULT SUBTRACT 4 THEN DIVIDE THE RESULT BY 2 AND THE RESULT SHOULD BE THREE.THEN I HAVE TO EPLAIN WHY THE RESULT IS ALWAYS 3. I DON'T GET IT CAN YOU PLEASE HELP. IM ABOUT TO

    asked by Alicia
  89. U.S. Government

    I'm struggling with answering this question and I would appreciate any help one could offer. I'm needing to answer the following question in paragraph form: Which one of these two philosophies do you think the Supreme Court should follow: judicial activism

    asked by Susie
  90. Physics

    A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass 7.9 mg) is traveling in the opposite direction. What speed would the bug need in order to slow down the truck by one mile per hour in a big bug splash (i.e., final speed 43 mi/h)?

    asked by Alexis
  91. College Chemistry

    if 5.25g of ice AT 0 c IS PLACED IN 25.63 G OF LIQUID WATER AT 28c, WHAT WILL BE THE FINAL TEMPERATURE OF THIS MIXTURE?

    asked by J Velji
  92. English

    1) Minimize versus minimise. Which is UK English & which is US English? 2) After cleaning, all waste must be properly disposed of. Is this sentence acceptable?

    asked by ann
  93. physics

    A large uniform block rests horizontally on two vertical supports(one support at the left end of the block and another at a distance from the other end) and has a weight hanging from its other end. The block has a mass of 100 kg and a length of 2 meters.

    asked by sandhya
  94. chemistry

    Determine the density of methane (CH4) in g/L at 24.7oC and 1.1 atm ideal gas eqn: P = (rho)RT, where: pressure: P = 1.1 atm specific gas constant: R, R = |R / M, where |R = 0.0821 L-atm / K-mol and, molecular weightCH4: M = 0.016 kg/mol R = 0.0821/0.016 =

    asked by kellie
  95. Acc/ Federal Taxation

    If a taxpayer has AGI of $35,000, how much of the following expense can he apply towards his itemized deductions? Medical Expenses $3,500 Tax Preparation Fees $500 Unreimbursed Employee Expenses $2,000 Charitable Contributions $1,000 Hint: Remember to

    asked by austin
  96. english

    can someone give me some examples of minimal cues and lead in therapeutic listening responses?

    asked by Anonymous
  97. price elasticity

    In an article about the financial problems of USA Today, Newsweek reported that the pa-per was losing about $ 20 million a year. AWall Street analyst said that the paper should raise its price from 50 cents to 75 cents, which he estimated would bring in an

    asked by raja
  98. chemistry

    I need 500 ml of 0.10 m HCL solution. I have a 3.785 liter container of HCL at 31.45% concentration. How do I acheive my objective?

    asked by Daniel
  99. Manageral Economics (Economyst Only Please)

    Wilpen Company, a price- setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U. S. demand for its tennis balls by using the following linear specification: where Q is the number of cans of

    asked by raja
  100. chemistry

    What volume (in Liters) of oxygen must react to form 17.0L of carbon dioxide according to the following balanced equation: 2CO(g) + O2(g) --> 2CO2(g) is this correct C G02 2

    asked by amber
  101. Biology 9

    I need a topic for with this criteria.. !@#$%^& the impact of a factor related to human activity that threatens the sustainability of a terrestrial or aquatic ecosystem OR Evaluate the effectiveness of government initiatives in canada and or the efforts of

    asked by lll
  102. English 2

    Gene and Finny are drawn to each other and share some character traits, but they are also very different. First, list the characteristics that are unique to Gene or Finny. Then list the traits they share. So far I have: Gene- Envious, Smart, Insecure

    asked by mysterychicken
  103. CHEMISTRY

    Which of the following gases will occupy the smallest volume at 300 K and 760 torr and why? 80 g diatomic oxygen 80 g methane 80 g hydrogen fluoride All gases will occupy the same volume

    asked by susan
  104. chem: study of kinetics

    im supposed to find the slope= -EA/R = triangle y/triangle x = (y2-y1) ________/(x2-x1)____________ how do i do this? is it the same as the slope that excel gave me? i have information from 3 different groups, and i have 3 x's and 3 y's, how do i solve

    asked by chem
  105. math

    find the equation of a line that passes through the origin and point (-3,6)

    asked by Lauren
  106. Algebra 1- Please Help !!!!!!!!:D

    When two numbers are added together, the result is 45.Twice the greater number is six more than five times the lesser number. What are the numbers.

    asked by 111
  107. Physics

    A 25 kg mass is on a level, rough surface where the force of friction is a constant 15 N. A horizontal applied force of 65 N acts on the mass. The mass is initially at rest. What speed does that mass have after being moved 2.0m?

    asked by Maia
  108. statistics

    find the range,standard deviation, and variance for the following sample date: 98,2,53,61,15,87,63,63,91,29,96,79,93,40,5,62 *please show all calculations for confirmation. thank you very much. i just want to double myself. thank you.

    asked by please help in panic mode-mary
  109. phyisc

    Write and balance the reaction for the complete combustion of methanol, CH3OH. (Type your answer using the format CO2 for CO2. Use the lowest possible coefficients.) 1CH3OH + 2 3 ¨ 4 5 + 6H2O

    asked by Ashley
  110. probabilityv

    A school's administrators are concerned about absenteeism at their school and the e ect it has on students' grades. The following data were compiled, based on a sample of students. Student's Absent Medium Absent Grade Infrequently Absent Frequently Low 1 9

    asked by lisa
  111. Acc/Federal Taxxtion

    During the current year, Deborah Baronne, a single individual, paid the following amounts: Federal income tax $10,000 State income tax $4,000 Real estate taxes on land in France $1,500 Real estate taxes on land in U.S. $1,700 State sales taxes $2,000 State

    asked by austin
  112. Chemistry

    Atom A- 6 protons, 6 electrons, 7 neutrons Atom D- 6 protons, 6 electrons, 8 neutrons Atom X- 7 protons, 7 electrons, 8 neutrons Atom Z- 8 protons, 8 electrons, 9 neutrons Which two atoms are isotopes of the same element? a. A and D b. A and Z c. X and D

    asked by timmy123
  113. physics

    really stuck, a 90 kg skier has 140 KJ of total mechanical energy when he is at a height of 120m above the bottom of the hill. calculate the skiers kinetic energy. calculate his speed?

    asked by dave
  114. physics

    If you have a 900cm2 plane mirror 45 cm in front of you and can just see the full length of an 8.5m flagpole behind you how far are you from the flagpole?

    asked by Help with Physcis
  115. economics

    Bridget has a limited income and consumes only wine and cheese; her current consumption choice is four bottles of wine and 10 pounds of cheese. The price of wine is $ 10 per bottle, and the price of cheese is $ 4 per pound. The last bottle of wine added 50

    asked by raja
  116. Accounts

    From the following Balance Sheets of Sriramco, prepare (a) Statement of Changes in Working Capital, and (b) Funds Flow Statement: Balance Sheet of Sriramco as on 31st December… Assets Goodwill Land and Buildings Plant Investments Book Debts Stock Cash in

    asked by Neeraj
  117. math

    A coordinate grid is used on the plan of a new housing development. fibre optic cable is being laid with a micro-tunnelling machine. THE CABLE WILL LINK POINTS BEGINNING at A and ending at D . if one unit on the grid represents 2.5m, how much cable is

    asked by Ted
  118. geometry

    In the triangle ABC, angle a=46 degrees and angle B=83 degrees. How large is the exterior angle at C?

    asked by Maria
  119. algebra

    a 3 1/2 foot piece of rope is cut into two pieces. one of these pieces is 8 inches shorter than the other. how long are the pieces?

    asked by yo dawga
  120. everyone

    can i just ask why some people who post a question get the answers and others get told they don`t have the work done for them its not fair. i know its a site where people get HELP with their homework but shouldn`t everyone be treated the same?

    asked by Anonymous
  121. College Chemistry

    Write the electron configuration for Se using the noble gas core format.

    asked by KELLY
  122. algebra

    The lengths of the sides of a triangle are consecutive even integers. Find the length of the longest side if it is 22 units shorter of the perimeter.

    asked by Anonymous
  123. computer science

    Mercy Hospital decides to install a netwrok to serviceits various wards and operating rooms and emergency room that will give them scheduling capibilities in real time. The ER and OR have less than 10 computer total but need preference to the server that

    asked by dwayne
  124. Physics

    The escalator that leads down into a subway station has a length of 28.5 m and a speed of 1.6 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11

    asked by phillip
  125. Science

    Explain newtons first law of motion

    asked by Denise
  126. business

    How is E-business , grandma's treats doing in profit

    asked by d walker
  127. math

    You operate a gaming Web site, where users must pay a small fee to log on. When you charged $4 the demand was 510 log-ons per month. When you lowered the price to $3.50, the demand increased to 765 log-ons per month. (a) Construct a linear demand function

    asked by liz
  128. Math/Vectors

    I need help on a homework problem. "Determine a vector equation for the line perpendicular to 4x-3y=17 and through point (-2,4). The answer in the book is given as [x,y]=[-2,4]+t[-4,3].Isn't the normal to the scalar equation [4,-3] and wouldn't this be the

    asked by Kate
  129. chemistry

    A mass of 2g of magnesium wire is oxidized with 150 ml of 0.5 mole/l (HCL solution) write the half rxn and the balanced equation of the overall rxn

    asked by Anonymous
  130. Algebra 1- Please Help !!!!!!!!:D

    roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many tickets did roberta sell?

    asked by 111
  131. College Chemistry

    A Cylinder is filled with 1.20 mol of He(g) at 25 C under ambient pressure of 0.966 atm. The gas in the cylinder is then heated with 1.430 KJ of heat, and the piston is raised by the expanding gas under the constant ambient pressure. Calculate the

    asked by J Velji
  132. chem

    A 31.2 cm3 bubble of air at 1.4 atm pressure is subjected to a new pressure of 3.9 atm. What will be the new volume (cm3)? Assume constant temperature. THe answer I got was 11.2 cm3 is this correct

    asked by amber
  133. College Chemistry

    if 5.25g of ice AT 0 c IS PLACED IN 25.63 G OF LIQUID WATER AT 28c, WHAT WILL BE THE FINAL TEMPERATURE OF THIS MIXTURE?

    asked by J Velji
  134. Acc/ Federal Taxation

    If a taxpayer has AGI of $35,000, how much of the following expense can he apply towards his itemized deductions? Medical Expenses $3,500 Tax Preparation Fees $500 Unreimbursed Employee Expenses $2,000 Charitable Contributions $1,000 For example, what is

    asked by austin
  135. Physics

    A 4.52 kg block slides down a smooth, fric- tionless plane having an inclination of 31◦ . The acceleration of gravity is 9.8 m/s2 . Find the acceleration of the block. Answer in units of m/s2.

    asked by Alejandra
  136. English ErR

    Although she is good story teller but her purpose of tales is not to amuse and entertain the shaharyar. She has messages behind every tale and she want to teach the king how to overcome from his past life and she wants to bring him back in the real world,

    asked by mujahid
  137. Chemistry

    Which of the following is best described as an acid-base reaction? 1. 2HgO -> 2 Hg + O2 2. NH3 + H2O -> NH+4 + OH− 3. KCl + NH4NO3 -> KNO3 + NH4Cl 4. Ca + 2H2O -> Ca(OH)2 + H2 5. NaCl + AgNO3 ->NaNO3 + AgCl How do u tell if it is a salt or not?

    asked by Elva
  138. economics

    Wilpen Company, a price- setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U. S. demand for its tennis balls by using the following linear specification: where Q is the number of cans of

    asked by raja
  139. Accounts

    The following details relates to the two machines X and Y: Machine X Machine Y Cost Estimated Life Estimated salvage value Working Capital required in the beginning Rs. 56,125 Rs.56,125 5 years 5 years Rs. 3,000 Rs. 3,000 Rs.10,000 Rs. 20,000 Annual income

    asked by Neeraj
  140. Easy Biology

    why cells within the same organism have the same ADN, but look and function differently?

    asked by Biology
  141. math

    points P(4,12), Q(9,14), and R(13,4)are the three vertices of a rectangle. a. find the coordinates of the fourth vertex, S. b. write a short description of how you found the coordinates of S. c. find the lengths of the diagonals of rectangle PQRS. COMMENT

    asked by Ted
  142. chemistry

    A volume of 0.285 L of a gas at STP weighs 0.537 g. Calculate the molar mass of the gas? PV=nRT where R = 0.0821. Therefore, (1)(0.285) = n(0.0821)(273). i got 275.9 is this correct?

    asked by susan
  143. Qoutes

    What can be a qoute for scary sleepovers?

    asked by Sumaiya
  144. accounting

    You can invest in 10 corporate bonds paying 7 percent interest 20 conservative stocks that pay substantial dividends(typically 5 percent of the stock price every year) and 30 growth oriented-technology stocks that pay no dividends. Analyze each alternative

    asked by chris
  145. 9th grade

    what banch of government created the changes thomas jefferson was writing adout

    asked by orain samuel
  146. molecular biology

    What's the purpose when experiments use H1/H5 depleted nucleosome as a model? What kind of characteristics do that nucleosome has? Thanks!

    asked by Holly
  147. Math

    How do I solve: -9x + 2x to the third power +8x -12x to the third power

    asked by Tawny
  148. college chemistry

    Manometers can use liquids other than mercury to measure small pressure differences. On a day when the barometric pressure is 761.7 torr, a water manometer, connected between the atmosphere and a glass bulb containing a sample of helium gas has a height

    asked by jojo
  149. math

    Find the intersection of the line through (0, 1) and (4.4, 2) and the line through (1.9, 3) and (5.3, 0). (Round your answers to the nearest tenth.) (x, y) =

    asked by liz
  150. Chem 1000

    A Cylinder is filled with 1.20 mol of He(g) at 25 C under ambient pressure of 0.966 atm. The gas in the cylinder is then heated with 1.430 KJ of heat, and the piston is raised by the expanding gas under the constant ambient pressure. Calculate the

    asked by J Velji
  151. MATH

    roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many tickets did roberta sell?

    asked by 111
  152. Algebra 1- Please Help !!!!!!!!:D

    roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many STUDENT tickets did roberta sell?

    asked by 111
  153. statistics

    for a particular sample of 77 scores on a psychology exam the following results were obtained: first quartile=44 third quartile= 71 standard deviation=6 range=45 mean= 64 median= 57 mode = 92 midrange=60 answer each of the following: a) what score was

    asked by please help in panic mode-mary
  154. math

    what three positive integers a, b, and c satisfy a^n+b^n=c^n, where n is a number greater than two

    asked by Anonymous
  155. principles of chenistry

    What mass of calcuim chloride is needed to prepare 3.650L of 1.75 M solution?

    asked by 0karla
  156. Calculus

    find the polar equation for hyperbola eccentricity of .8 and a vertex of (1,pi/2)?

    asked by Damian
  157. Acct/ Fwederal Taxation

    Itemized Deductions: During 2009 Sam had incurs the following deductible expenses: state income taxes $2,300,local property taxes $2,000, medical expenses $800,and charitable contributions $1,500. Sam is aingle with no dependents and has a $35,000 AGI for

    asked by austin
  158. Foods

    I think I have mostly all the answers to my questions though I don't know if they are right. Any ways my last question is: what is used to cook vegetables and fruits, and to make sauces which do not contain milk? Please try to answer my other questions as

    asked by Rose
  159. marketing

    The company you work for is considering changing its applicant testing process. Your supervisor has asked you to research testing methods and make your recommendation. This proposal will be submitted to the Vice President for review and consideration.

    asked by Anonymous
  160. maths

    a fasrmer has 46 animals.He has fewer 6 sheep than pigs. how many pigs does he have?

    asked by josh
  161. English-The Hunger Games

    I have to create a magazine that would be published about the games(capitol) -Magazine format which I am doing is : * Regular issue during the games. CRITERIA: Create an authentic product true to the details of the novel. INCLUDE THE FOLLOWING: *min. 6

    asked by Sara
  162. science

    my teacher told me and my group to pick a lab we want to do? we will be working on this for 7months what can we do that wont be boring for this 7months

    asked by jennifer
  163. Grade 11 Physics

    A motorized canoe is pointed [N20degreesW] in a river. If has the capability to move at 5 m/s and filmed moving at 7.6 m/s, what is the velocity of the river?

    asked by RPA
  164. stats

    Microbes in a certain colony exposed to radiation have a 1/6 chance of being mutated. a. If ten microbes from the colony are sampled, what is the probability that exactly 4 will be mutated? b. If ten microbes from the colony are sampled, what is the

    asked by jimmy
  165. statistics

    Find the range, standard deviation, and variance for the following sample data: 98, 2, 53, 61, 15, 87, 63, 63, 91, 29, 96, 79, 93, 40, 5, 62 *please show calculations step by step so that i can compare my work. thank you very much. i know that i am off

    asked by mary, can't figure out calculation, please show your calculations for all questions listed above a-e
  166. Physics

    A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass 7.9 mg) is traveling in the opposite direction. What speed would the bug need in order to slow down the truck by one mile per hour in a big bug splash (i.e., final speed 43 mi/h)?

    asked by Alexis
  167. history

    id be very very grateful if someone could help me answer these questions. describe one way in which hitler broke the treaty of versailles in the years1933-1936 (worth 2 points) is it because Hitler agreed not to send his troops to the rhineland? briefly

    asked by Milko
  168. physics

    Here were two tricky questions. Please provide steps. Answers are not necessary (since these are practice questions for an exam). 1.) The centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a

    asked by jo
  169. science

    a block of aluminium at room temp is 20cm when heated it increases to 25cm when back to room tempthe volume returns to20cm why does this happen

    asked by elliott
  170. algebra

    two planes take off from an airport at the same time and head in opposite directions at 260 mph and 275 mph respectively. in how many hours will they be 1605 miles apart?

    asked by dan
  171. finance

    Write a 200- to 300-word paper comparing long- and short-term financing. Describe situations in which each type of financing would be used. Post in your Assignment Section.

    asked by alexis
  172. college

    Liver alcohol dehydrogenase (ADH) is a nonspecific enzyme. Its normal substrate is ethanol but it will oxidize other primary alcohols like methanol. Methanol produces formaldehyde which is quite toxic and can lead to blindness. A dog ingested about 36 ml

    asked by LostonEnzymes
  173. math

    a coast guard ship left the port at 30 mph. four hours later a helicopter was dispatched at 90 mph to intercept the ship. how long will it take the helicopter to catch the ship?

    asked by ryan
  174. Business Statistic

    X f(x) 0 .25 1 .20 2 .15 3 .30 4 .10 Is it prpbsbility distribution valid? Explain and list the requirement for a valid probability distribution Calculate the expected value x Calulate the variance of x calculate the standard deviation of x

    asked by Laverne
  175. ms sue-history

    sorry me again for my first question describe one way in which hitler broke the treaty of versailles in the years 1933-1936.. did hitler send his troops to the rhineland when he was told not to?

    asked by Milko
  176. math

    sarah has dimes and nickels which total $1.65. the number of nickels she has is 3 less than the number of dimes. how many of each does she have?

    asked by ryan
  177. math

    a coast guard ship left the port at 30 mph. four hours later a helicopter was dispatched at 90 mph to intercept the ship. how long will it take the helicopter to catch the ship?

    asked by smith
  178. math

    two planes take off from an airport at the same time and head in opposite directions at 260 mph and 275 mph respectively. in how many hours will they be 1605 miles apart?

    asked by smith
  179. english-poetry

    I need some help in finding some good one stanza (4 lines) poems. Tried googling but my googling skills are not very good. Maybe one of you have a good list? Thanks

    asked by marco
  180. phi 445

    In your opinion, is better to have a true capitalists type of market or do you think that there should be a combination of markets blended together to make up the overall market for our nation?

    asked by meshelle
  181. phi 445

    Some critics say that there is a problem with "burnout" with the due care theory. In your opinion, what does that mean?

    asked by meshelle
  182. physics

    Two cars, A and B, are traveling in the same direction, although car A is 174 m behind car B. The speed of A is 25.6 m/s, and the speed of B is 18.6 m/s. How much time does it take for A to catch B?

    asked by megan
  183. chemistry

    A 16.5 cm3 bubble under the ocean at 2.1 atm and 12.5oC surfaces to 1.0 atm and 22.1oC. What is the new volume (in cm3)?

    asked by april
  184. chemistry

    -182 degree c, -68 degree c, 943 degree c, 115 degree c, 0 degree c, which is the melting point of an ionic solid?

    asked by shayla
  185. 6th grade

    Hi im emy. What is a word problem for 4*-5?

    asked by emy
  186. English

    As I know a character after which a book is named is an eponymous character,is there a particular word for a symbol after which a book is named? If there is such a word, The Scarlet letter in Hawthorne's The Scarlet Letter, the Mockingbird in Lee's To Kill

    asked by Kristi
  187. chemistry

    iatrochemistry -what is it? -who created it? cant use wikipedia :s thanks!

    asked by Regina
  188. Finanical

    which financial ratio do you think would be most beneficial for a firm today? Why?

    asked by Ez
  189. philo

    Lawyer: My client, television commentator Jonas Cassell, was fired by the network that employed him for criticizing one of the network’s major sponsors. However, Cassell’s comments were said off the record at a private party, and only became public

    asked by maria
  190. English

    What concerns does Omi and Winant’s theory of “racial formation” share with Bell Hooks’ critique of postmodernism? How might Omi and Winant’s concept address hooks’ concerns about what is lost when we reject essential identity?

    asked by Matthew
  191. chem

    If the wet H2 gas occupies a volume of 6.84 L, how many moles of H2 are formed?

    asked by jen
  192. Algebra 2

    can someone show me how to do it step by step please! Use a graph and table to solve each system. check your answer {y+x=5 {3x-5y=-1

    asked by Ren
  193. VA & US History

    What would john dickinson think of the Boston Tea Party?

    asked by Angelina
  194. math

    alex and yvonne are spending the day ata apark. they have $50 to spend between them. How many combinations of activities can Alex and yvone do for under $50?

    asked by jill
  195. tere

    what did i do wrong? i need to find lowest vapor pressure. a 0.13 m FeCl3 b 0.50 m sucrose c 0.24 m NaNO3 d 0.15 m Na2PO4 so i solved. a 4 x 0.13 = 0.52 b 1 x 0.50 = 0.50 c 5 x 0.24 = 1.2 d 7 x 0.15 = 1.05 i chose C but the answer is A. did i do something

    asked by chemistry
  196. Phyics

    Balance the following equations? a) Fe(OH)2 + 2O2 + 3H2O ¨ Fe(OH)3 (b) 5Sr + 6H2O ¨ 7Sr(OH)2 + 8H2 (c) 9Al + 10Fe3O4 ¨ 11Al2O3 + 12Fe (d) 13Pb(NO3)2 ¨ 14PbO + 15NO2 + 16O2 (e) 17O2 + 18N2H4 ¨ 19H2O2 + 20N2 (f) 21C4H10 + 22O2 ¨ 23CO2 +

    asked by Ashley
  197. english

    identify five therapeutic listening and verbal responses does that phrase mean 5 of each or those two add up to be 5

    asked by flame
  198. social studies

    I need a brief summury of the four staged of transformations learning cycle

    asked by laura
  199. business economics

    how business economics helps business manager in decision making

    asked by ravi
  200. english

    How can I fix this sentence? some of the questions I asked him are “Tell me reasons why did you end up staying at the hospital?” and “Tell me more about the pain in your right leg?”

    asked by kelly
  201. english

    How do I fix this sentence? some of the questions I asked him include “Tell me reasons why did you end up staying at the hospital?” and “Tell me more about the pain in your right leg?”

    asked by Anonymous
  202. math

    a leach-free area for dogs is to be created in a field behind a recreation centre. what length of fencing will be required, if the plans show an irregular pentagonal area with vertices at (2,0), (1,6), (8,9), (10,7), and (6,0)?( one unit represents 10m).

    asked by Ted
  203. medical terminology

    the period of time when the uterus returns to its normal size is the? A) luteal phase B)menarche C)puerperium D)ovulation

    asked by ceecee
  204. Radiation Physics

    How can I get dose from exposure? Could you provide an example of it? Thank you

    asked by A
  205. Pre Calc

    If f(x) = 2x − 1 and g(x) = x^2 + 5, find (f of g)(−3) and (g of f)(2). Can anyone help ?

    asked by Alex
  206. Math

    Find the work done by a 15 N force in the direction of the vector (1,2,2) when it moves a particle from O(0,0,0) to P(1,-3,4) and then from P to A(7,2,5) Can somebody explain to me how to do this question i don't understand it.

    asked by Christian
  207. naturaral sciences

    How do we design and experiment that proves that the water forming on the outside of a can comes from air?

    asked by tasneem
  208. math

    twelve posts stand equidistant along the stadium. starting at the first post, a runner reaches the eight post in 8 seconds. if he runs at a constant rate, how many seconds are needed to reach the twelfth post?

    asked by kelly
  209. Jean

    the saturation point or the solubility of salt X in water is 27 g per 100 mL of solvent used. if a person adds 29 g of this salt to a 100 Ml of solvent what type of solution would form? shouldnt the answer be supersaturated? since saturation point is 27g?

    asked by chemistyr
  210. physics

    need some help, A ball with an initial angular velocity of 20.0 rads /s and a rotational inertia of 0.4kgm rolls uphill with an acceleration of -4.00 rad/s . Calculate the net torque acting on the ball. Calculate the angular displacement after 5.00 s.

    asked by chris
  211. science

    my teacher told me and my group to pick a lab we want to do? we will be working on this for 7months what can we do that wont be boring for this 7months

    asked by jennifer
  212. reading

    is referred and introduced are the same

    asked by ferred and intro
  213. CHEMISTRY

    iatrochemistry -what is it? -who created it? (facts about him/her)

    asked by Regina
  214. Accounts

    The following is the Trial Balance of a trader as at 31st December, 2001: Debit Balances Rs. Credit Balances Rs. Stock (1-1-2001) Sales returns Purchases Freight and carriage Rate, Rent etc. Salaries and wages Sundry debtors Bank Interest Printing and

    asked by Rishabh
  215. parenting

    how do i make an inspector's checklist for a daycare facility

    asked by Ted
  216. Western Civilization

    What methods did the various leaders (19th century) use to foster a sense of national pride in their respective countries? How do these methods compare with the revolutions of 1848?

    asked by Tee Smith
  217. MS SUE HISTORY

    SORRY I only wanted some help where i could get some information to help answer the questions i know you don`t do assignments for us. thanks

    asked by Milko
  218. Jean

    the saturation point or the solubility of salt X in water is 27 g per 100 mL of solvent used. if a person adds 29 g of this salt to a 100 Ml of solvent what type of solution would form? shouldnt the answer be supersaturated? since saturation point is 27g?

    asked by chemistyr
  219. algebra

    sarah has dimes and nickels which total $1.65. the number of nickels she has is 3 less than the number of dimes. how many of each does she have?

    asked by bro
  220. geography

    Thank you Ms. Sue. I went to one of those websites and was able to show my Mom that Madagascar is in Eastern Africa!!!

    asked by Reed