Questions Asked on
August 17, 2011

  1. physics

    A small weather rocket weighs 14.7 N. The rocket is carried up by a balloon. The rocket is released from the balloon and fired, and its engine exerts an upward force of 10.2 N on the rocket. What is the acceleration of the rocket?

    asked by Anonymous
  2. physics

    A bus accelerates at 1.4 m/s2 from rest for 10 s. It then travels at constant speed for 26 s, after which it slows to a stop with an acceleration of magnitude 1.4 m/s2. (a) What is the total distance that the bus travels? (b) What was its average velocity?

    asked by Laura
  3. maths/physics

    A rubber ball weighs 49 N. What is the acceleration of the ball if an upward force of 69 N is applied?

    asked by Anonymous
  4. AP Physics

    A person on a trampoline bounces straight upward with an initial speed of 4.7m/s . What is the magnitude of the person's speed when she returns to her initial height?

    asked by Vova
  5. physics

    A certain sports car accelerates from 0 to 60 mph in 9.0 s (average acceleration = 3.0 m/s2). The mass of the car is 1354 kg. The average backward force due to air drag during acceleration is 280 N. Find the forward force required to give the car this

    asked by Anonymous
  6. Geometry

    Point P is located on the segment between point A(1,4) and point D(7,13). The distance from A to P is twice the distance from P to D. What are the coordinates of point P?

    asked by Michaela
  7. physical science

    alever is used to lift a heavy load. when a to-n force pushes one end of the lever down 1.2m the load rises 0.2m. show the weight of the load is 300n

    asked by hattie
  8. Science

    I have to use the terms hypothesis, controlled experiment, and variable in the same sentence.

    asked by Hayley
  9. physics

    Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 50 m apart. The train on the left accelerates rightward at 1.05 m/s2. The train on the right accelerates leftward at 0.93 m/s2. (a) How far does the train

    asked by Laura
  10. Programming

    Write a pseudocode program that asks the user for an integer between 1 and 12. The program is to calculate the times table for that number. So for example, if the user enters a 2, then the program has to calculate 2x1 and display the answer, then 2x2 and

    asked by Darlene
  11. Calculus

    Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=3sqrtx , y=3 , 2y+2x=5

    asked by Dan
  12. physics

    The coefficient of sliding friction between rubber tires and wet pavement is 0.50. The brakes are applied to a 750 kg car traveling 30 m per second, and the car skids to a stop. What is the magnitude and direction of the force of friction that the road

    asked by Anonymous
  13. Physics

    A whale swims due east for a distance of 7.5 km, turns around and goes due west for 2.5 km, and finally turns around again and heads 2.6 km due east. (a) What is the total distance traveled by the whale? (b) What are the magnitude and direction of the

    asked by Pay
  14. math

    use mental math to find each value 5% rebate on a $150 cell phones

    asked by luiz
  15. AP Chemistry

    Given: 2N2(g) +O(2) --> 2N2O(g) Kc =1.2x10^(-35) N2O4(g) --> 2NO2(g) Kc = 4.6x10^(-3) 1/2N2(g) + O2(g) --> NO2(g) Kc= 4.1x10^(-9) Calculate Kc for the reaction between one mole of dinitrogen oxide gas and oxygen gas to give nitrogen tetroxide gas.

    asked by Matt
  16. physics

    The space shuttle has a mass of 2.0 × 106 kg. At lift-off the engines generate an upward force of 30 × 106 N. a. What is the weight of the shuttle? b. What is the acceleration of the shuttle when launched? c. The average acceleration of the shuttle

    asked by Anonymous
  17. Physics

    A runner runs around a circular track with a radius of 50m.if he runs half way round the track from a to b.am i correct if i say his distance is 100m?

    asked by Pamela
  18. Conic section identification

    Explain which conic section this equation and explain how to solve it: 12x^2-18y^2-18x-12y+12=0

    asked by saad
  19. algebra 2

    Explain which conic section this equation and explain how to solve it: 12x^2-18y^2-18x-12y+12=0

    asked by saad
  20. Chemistry

    How many grams of hydrogen can be produced by the electrolysis of water with a current of 0.290 A running for 5.00 min?

    asked by Heidi
  21. math

    A bucket contains 7 red, 3 blue, 2 black and 1 yellow ball of the same size. A random selection of 5 balls is taken from the bucket. find the probability that the random selection will contain atleast 1 red ball?

    asked by Mahalakshmi
  22. AP Physics

    A person on a trampoline bounces straight upward with an initial speed of 4.7m/s . What is the magnitude of the person's speed when she returns to her initial height?

    asked by Vova
  23. math

    Determine the regular payment amount, rounded to the nearest dollar. The price of a home is $160,000. the bank requires a 15% down payment. The buyer is offered two mortgage options: 1 year fixed at 8% or 30-year fixed at 8%. Calculate the amount of

    asked by marie
  24. math

    classify each statement as sometimes, always, or never true. give examples or properties to support your answer a+ (bc) =( a+b) .(a+c)

    asked by adrian
  25. english

    Write one paragraph of eight to twelve sentences informing your fellow students of your reasons for wanting to earn your diploma in the program in which you're enrolled, particularly in terms of your career goals. For example, why did you decide to take

    asked by Abdullah
  26. math

    A farmer has both chickens and sheep on his farm. He has a total of 25 animals and there are 72 legs on his farm. How many of each animal is there? (I think the answer is 18 (sheep) as chickens are birds not animals!!!

    asked by lisa
  27. chemistry

    Bottle A has a volume of 1.2 L, When Filled with sugar water the bottle has a total mass of 5.0 pounds. If the empty bottle has a mass of 800 grams. determine the density of the sugar water in g/mL.

    asked by Yoyo
  28. english

    what is correct barb-and i or barb and me

    asked by janice
  29. solving conics

    Explain which conic section this equation and explain how to solve it: 12x^2-18y^2-18x-12y+12=0

    asked by saad
  30. AP Physics

    A person on a trampoline bounces straight upward with an initial speed of 4.7m/s . What is the magnitude of the person's speed when she returns to her initial height?

    asked by Vova
  31. physicsURGENT!!!!!!

    Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 50 m apart. The train on the left accelerates rightward at 1.05 m/s2. The train on the right accelerates leftward at 0.93 m/s2. (a) How far does the train

    asked by laura
  32. english

    You demonstrate that you are able to revise, edit, and proofread by effectively rewriting a paragraph using the standard written conventions of American English. To accomplish this assignment, you apply the rules and skills taught in the first four study

    asked by Abdullah
  33. HCM621

    As the health care industry evolves and changes so do the legal and ethical issues that its employees face. An employee of the facility you have chosen to study this term has come to you with a question. He has heard a lot about issues the organization is

    asked by Pupitas
  34. physics

    The last car unfastens from a moving train. The train continues to move at the same constant speed. What is the ratio of the paths covered by the train and car up to the moment of the car’s stop? Assume that the car decelerates uniformly. Solve this

    asked by Anonymous
  35. bryce

    can someone help me write out these expressions? 4 more than p: product of c and 15: the quotient of n and e: The quotient of 17 and k: 23 less than x: the sum of v and 3: the sum of 9 and k minus 17: 7 more than 5 times n: 85 less than the product of t

    asked by Math
  36. sociology

    U.S. Civil Service Commission, what polices would you propose to reduce radical ethnic strife in the U.S.

    asked by Anonymous
  37. math

    Determine the regular payment amount, rounded to the nearest dollar. The price of a home is $160,000. the bank requires a 15% down payment. The buyer is offered two mortgage options: 1 year fixed at 8% or 30-year fixed at 8%. Calculate the amount of

    asked by marie
  38. Economics/ Free Enterprise

    What does thinking at the margin mean? Also what is the purpose of a decision grid?

    asked by Claire
  39. physicsHELP!!!

    Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 50 m apart. The train on the left accelerates rightward at 1.05 m/s2. The train on the right accelerates leftward at 0.93 m/s2. (a) How far does the train

    asked by laura
  40. algebra

    A boat can travel 114 miles upstream in the same time that it can travel 186 miles downstream. If the speed of the current is 6 miles per hour, find the speed of the boat without a current.

    asked by carl
  41. Economics/ Free Enterprise

    What is "Guns or Butter"? Also what is a Production Possibilities curve? I'm a bit confused. Thank you so much whoever is answering this question (:

    asked by CP
  42. physics

    Container A is sealed (not open to the atmosphere) filled with water with an unlimited width and depth. Container A consists of Section 1 and 2. The upper part of Container A, Section 1 has 5 feet of air at 21.83 psi Tube B is 80 feet long and full of air

    asked by Anonymous
  43. algebra

    jim bought a pair of shoes for $50 and laces for $1. if the sales tax is $7, how much tax must he pay?

    asked by angie
  44. math

    use mental math to find each value cost of 8 items at $12.98 each

    asked by raul
  45. math

    classify each statement as sometimes, always, or never true. give examples or properties to support your answer d+ (-d)=0

    asked by jorge
  46. Statistics

    A study shows that the probability of a baby being born with gene x is 0.6. The probability of a baby being born with gene y is 0.7. (a)What is the probability of being born with both genes assuming that the probabilities are independent? (b)In fact; 90%

    asked by waqas
  47. physics

    If the tires of the car in previous problem didn’t skid, the coefficient of friction would have been 0.70. Would the force of friction be greater, lesser, or same? Would the car come to a stop in a shorter, same, or longer distance?

    asked by Anonymous
  48. Math

    Can someone please go over the steps to solve this problem? I know I need to find where the tugboat intersects the radar but I'm not sure exactly how to do this. A radar buoy detects any boats within a radius of 12 miles. A tugboat starts at a location 18

    asked by Lily
  49. Math

    Last month you made long-distance calls to two of your friends. One call lasted 8 min longer than the other. According to the phone bill,the two calls lasted a total of 42 min. How long was each call?

    asked by Kelsie
  50. Math

    Your cousin is 26 yr older than your sister. The product of their ages is 560. How old is your sister?

    asked by Kelsie
  51. English

    I need to know whether I have at least five adjectives and five adverbs in this paragraph. I am really struggling with this. I understand what adverbs and adjectives are, I am just having trouble writing a paragraph where I have to insert them! One of the

    asked by Kala
  52. physics

    The driver notices that the rain leaves no trace on the back windshield of his car slanted at a 60° angle to the horizontal when the car is moving faster than 30 km per hour. Find the velocity of rain droplets.

    asked by Anonymous
  53. maths/physics

    Two objects are thrown simultaneously from the same height at 45° angles to the vertical with a speed of 20 m per second; one up, the other one down. Find the difference between the heights the objects will be at two seconds later. How are these objects

    asked by Anonymous
  54. Math

    This question is about equations reducible to quadratics: Gerald hits his golf ball down the fairway. The path the ball followed was parabolic in shape with the relationship: h=2d-1/30d^2 where h is the height above the ground of the golf ball when it is a

    asked by CrissyXD
  55. algebra

    Does the function y = 2^x ever cross the x-axis? Explain why or why not

    asked by carl
  56. Geometry

    OMG! I HAVE A BUNCH OF PATTERNS AND I DON'T KNOW HOW TO SOLVE THEM! THINGS LIKE 61, 52, 63, 94... what the poop? help!

    asked by Sarah
  57. trig

    i can not figure out how to write the complex number in rectangular form the question is 4(cos 5Pie/6 + i sin 5 pie/6)

    asked by fred
  58. conics

    Explain which conic section this equation and explain how to solve it: 12x^2-18y^2-18x-12y+12=0

    asked by saad
  59. MATHS help plizzz

    A spherical balloon is being inflated and its radius is changing at the rate of 2m/minute. When the radius is 4m, find the rate at which the: (a).volume is increasing V= 3/4 pie r^2 (b). surface area is increasing A = 4 pie r^2

    asked by -Minx-
  60. science

    two balls of same size but of different material ,rubber and iron are kept on the smooth floor of a moving train.the brakes are applied suddenly to stop the train .Will the balls start rolling ?If so,in which direction ?Why they move with the same speed

    asked by shruti
  61. chemistry

    N204 (l) Delta Hf (kJ/mol) = -20 E cell S (J/mol.K) = 209 N204(g) Delta Hf (kJ/mol) = 10 E cell S (j/mol.k) = 304.1 Given the following data, determine the temperature at which n2o4 (l) and n204 (g) can exist in equilibrium? a. 42 C b. 3 C c. -231 C d. 30

    asked by Sara
  62. Statistics

    The turnover (in millions of pounds) for 8 train companies and 8 coach companies are given below. Train 4.3 13.2 134 88 92 66.5 122.1 102 Coach 2.2 31 44 72 19 89.3 55.9 43.1 (a)Using an appropriate statistical test determine whether train companies or

    asked by waqas
  63. English

    This is from the book Nothing but the truth by Avi. The question is: After reading the memo in chapter 6, what do you think is the most important issue to the superintendent right now? Please read below to and tell me what you think the answer is because

    asked by BritBrit
  64. englis

    Write 3–4 sentences to your best friend describing what you did today using the natural language you would use to talk to your friend. Then, write to your boss and tell him/her about the same event you described to your friend. Compare the verb choices

    asked by nisreen
  65. ENGLISH-COM 155

    Do I have five adverbs and five adjectioves in this paragraph? When I got my first white car, I was very excited! My mother and father often feared that I would default on my loan, which I did. I was not very experienced, and did not do my homework like I

    asked by Mariah Adams
  66. MATH PLEASE HELP!!!!!

    Ms. Goldfarb has 12 turquoise beads and 3 times as many amber beads. She is making 8 pins with the same number of beads on each pin. How many beads will be on a pin?

    asked by MIKI
  67. Calculus 1, Help!

    The rate of transmission r in a telephone cable is obseed to be approximately r(x)=x^2*ln(1/x, where x is the ratio of the radius of the core to the thickness of the insulation. Due to manufacturing constraints, the only possible ratios are 1/4

    asked by Callie
  68. maths/physics

    A plane is flying in a straight line at an unchanging height and unchanging speed. The pilot must drop an object onto a target in front of the plane. At what angle must the pilot see the target at the moment of dropping the object? At that moment, what is

    asked by Anonymous
  69. algebra

    Two drivers travel 150 miles on a freeway and then stop at a wayside rest area. The first driver travels 5 miles per hour faster and arrives 1/7 hour ahead of the second. Find the average speed of each car.

    asked by mich
  70. physics

    A wagon with a width of 2.4 m, moving at a speed of 15 m per second, was shot through by a bullet perpendicular to the movement of the wagon. The distance between the two bullet holes in the wagon’s walls is 6 cm. What is the speed of the bullet?

    asked by Mia
  71. math

    Which is steeper, y = 4x+ 5 or y = - 5x - 2 ?

    asked by mely
  72. english

    Pretend that you writing to the editor of your local newspaper. Your purpose is to convince its readers that rather than solely relying on e-mail, people should mail a letter to their loved ones every now and then. Following is your first draft. Every now

    asked by Abdullah
  73. math

    f(x)=15x + 4

    asked by ramande lawson
  74. Math

    Is this a true statement and what are the steps to figure it out? 5x-3y=15:(0,5)

    asked by Lee
  75. Medical Laws & Ethics

    Describe the role of the health information management technician in the judicial process.

    asked by Lisa
  76. math

    if i bought a car for $18,500 and price was 35% off what was original price and how do I do the math

    asked by ray
  77. math

    if i bought a car for $18,500 and price was 35% off what was original price and how do I do the math

    asked by ray
  78. calculus!URGENT

    Show that the tangent line to the curve y=x^3 at the point x=a also hits the curve at the point x=-2a. Any help?! PLEASE!

    asked by Allison
  79. physics

    Water is shooting at the same speed out of the three tubes placed on the ground at different angles of 60°, 45°, and 30° to the horizon. Find the ratio of the greatest heights the streams can reach and the ratio of distances from the mouths of the tubes

    asked by Anonymous
  80. math (repost)

    Question: Can MSI (1000 sq inch) be converted into "linear feet"? Answer that was given: Yes, 1MSI = 6.94 ft In a previous post I was told to divide 1000 by 144, but won't that just leave me with 6.94 sq ft? I'm still a bit confused by this, can some one

    asked by mary
  81. adult education

    How do educational philosophies and theories affect the statement of purposes and goals, curriculum, instruction, and values?

    asked by Anonymous
  82. literary

    In your post, summarize the major similarities and differences between the forms of drama, poetry, and the short story.

    asked by bean
  83. Math

    Hi. So we had a long test with this question.. I was wondering how to solve it? Coz our teacher didn't discuss the answers.. and most probably we'll have the same type of question during midterms.. Find the Solution Set 9/|2-5x| - 4/y^2-3y = 5 2/|2-5x| +

    asked by Jen
  84. Math

    another question, im so confused!D: it says: Define variables and write an EQUATION for each phrase: 1.)The total cost is the number of cans times 0.70. Let ___ represent total cost and let ____ represent # of cans. __________________

    asked by Math
  85. Math

    Go to: //mmpc.svsu.edu/54thMMPC-PI-Test.pdf Can you explain why number 12 is D?

    asked by qwerty123
  86. math

    x + y = 4 2x - 3y = -2

    asked by ty
  87. Math

    Simplify 1 over [(cube root 2) + 1]

    asked by James
  88. Music

    I'm doing an independent study plan for music and I really need some suggestions for choosing the right subject that will be fun and interesting for a class to learn about. Could I please have some suggestions? (Something to do with the voice or piano

    asked by Beethoven
  89. chemistry

    What causes the calcium and ATP concentrations to decrease?

    asked by meme
  90. Quimica

    No se nombrar este compuesto lo necesti urgente no lo encuentro en ningun lado es: 2RbBr(s) como se llama?

    asked by Erika
  91. visual art terms

    variety

    asked by earlene
  92. Statistics

    3.The lifespan of 300 Giant turtles is found to follow a Normal distribution ~ N(70,144). (a)What is the standard error for this sample’s mean? (b) What is the probability of a turtle living more than 85 years? (c)What is the probability of a turtle

    asked by waqas
  93. Calculus :)

    find y'(x) if x^y=y^x

    asked by Hailey
  94. Calculus

    I'm studying infinite series and am really struggling with memorizing all the tests for convergence in my book, there's like 10 of them. I don't think I'm going to be successful in memorizing all of them. I will never be asked in my course to use a

    asked by Lee
  95. chemistry

    Can some nice chemist explain to me the system of naming compounds with roman numerals? Also while they are here, tell me exactly the difference between molecules and compounds. Thanks!

    asked by jim
  96. math

    cotxcot2x-cot2xcot3x-cot3xcotx

    asked by Poonam
  97. Latin

    Hey I need help finding the English meaning of each of these Latin words. 1 habeo to have 2 3 habemus 4 5 habes 6 you have 7 habetis 8 9 habet 10 11 habent 12

    asked by Marina
  98. history

    what were some social, political, and economic changes resulting from the hundred years war? And how did the war begin?

    asked by sandy
  99. Free Enterprise

    I'm not clear on the purpose of a decision grid. I know it's most likely common sense but is it just used for considering your options and comparing them in columns or does it have a purpose beyond that?

    asked by LHS
  100. writing

    Is "a newborn kitten" considered a complete subject?

    asked by Aaron
  101. statistics

    why is the range 31.57 - 34.03 is not a good choice for class boundaries?

    asked by Need help
  102. statistics

    what type of datat must you collect for a t test and why?

    asked by Anonymous
  103. statstics

    Considering that a researcher can test at the

    asked by Anonymous
  104. geometry

    since segment KL and segment LM are congruent, set up an equation to solve for x. What is the value of x? K (5x-4) L (3x+12) M

    asked by morgan
  105. social studies

    how do you find out what century a certain year is in?

    asked by aleesia
  106. math

    a cube is expanding and its volume is increasing at the rate 96 cubic centimetres/second when the side is 4 cm.Find the rate at which the: a.side is increasing when the side is 4 cm b.surface area is increasing when the side is 4cm V= x^3 A= 6x^2

    asked by -Minx-
  107. Math

    Use the 5 steps to solve this problem. Paint Express charges $30 per gallon of paint plus $1.10 per square fooet of wall space. Color Creations charges $24 per gallon of paint and $1.20 per square feet of wall space. Robert estimates he wll need 4 gallons

    asked by Meemee Romulus
  108. quantative

    Provide one pair of variables that might be related to one another

    asked by dana
  109. Mediation

    How does a human services worker integrate the use of mediation, or third party neutrality, when he or she also serves as an advocate for the client and is an employee of the agency

    asked by Tristan
  110. Mathematics

    1. make p the subject: p/p-3= R 2. make R the subject a= 1- 1/R

    asked by Sarah
  111. Lab Porcedures

    A small sample taken from the body and placed on a medium to allow bacteria growth is a A. profile B. culture C. serum D. specimen Is B correct

    asked by Eileen
  112. math

    how to solve (1/291 - 1/x)

    asked by Carol
  113. algebra

    x+4>9 how do you solve this, and graph?

    asked by Cbear
  114. St. Mary's College

    I arrived on Barbados on 12/09/99

    asked by Anonymous
  115. marketing

    give several exmples how compaines today devloped a marketing mix to compete in ther industry

    asked by pam
  116. American Democracy

    What is Devolution

    asked by Andrew