Questions Asked on
December 21, 2009

  1. physics

    how many kilometers per liter will a car obtain if its engine is 25% efficient and it encounters an average retarding force of 500N at highway speed? assume that the energy content of gasoline is 40Mj/liter

    asked by john
  2. Trig.

    An airplane flying at 600 miles per hour has a bearing of 52 degrees. After flying for 1.5 hours, how far north and how far east will the plane have traveled from point of departure? (I'm not sure how to convert miles into degrees or if that's even the

    asked by Sam
  3. French

    Could you please check and correct this for any spelling or grammar problems. Thanks! PAST 1.Quand j'étais jeune, j'ai eu des cheveux blonds. 2.Ma soeur, Marissa, et moi avons joué ensemble tout le temps. 3.J'ai sucé mon pouce. 4.J'ai porté une

    asked by Beth
  4. Physics

    The Olympic diver completes 3.5 somersaults in 1.7 seconds. What is the average angular speed (in rad/s) of the diver?

    asked by Joe
  5. Physics

    A car can decelerate at -4.80 m/s^2 without skidding when coming to rest on a level road. What would its deceleration be if the road were inclined at 13 degrees uphill? Assume the same static friction force. Supposively the answer is -7.00 m/s^2 but I keep

    asked by Jake
  6. Math

    How many different three-digit numbers can be written using digits from the set of 1, 2, 3, 4,5 without any repeating digits?

    asked by Michelle
  7. 10th grade english

    Write an essay comparing Baldwin's account of the Titanic with Rosenthal's account of his visit to Auschwitz.In your paragraph, explain how the tone and purpose of each essay is different. Support your argument with at least one example from each essay.

    asked by brad
  8. Physics

    3) Joe has a playing time of 74 minutes. When the music starts, the CD rotating at an angular speed of 480 revolutions per minute (rpm). At the end of the music, the CD is rotating at 210 rpm. Find the magnitude of the average angular acceleration of the

    asked by Bob
  9. Physics

    ) Joe has a playing time of 74 minutes. When the music starts, the CD rotating at an angular speed of 480 revolutions per minute (rpm). At the end of the music, the CD is rotating at 210 rpm. Find the magnitude of the average angular acceleration of the CD

    asked by alexs
  10. Pre-Calculus

    The population of a particular type of bacteria doubles in number every 12 hours. a)if there are 8 bcteria initially, write an equation that models the number of bacteria present after x 12 hours. b)How many bacteria will be present after 5 days? by using

    asked by Amy
  11. Organic Chemistry

    What other oxidizing reagents could have been used to convert the 9-fluorenol to 9-fluorenone?

    asked by Kevin
  12. physics

    The eye of a hurricane passes over Grand Bahama Island. It is moving in a direction θ = 49° north of west with speed v1 = 41.0 km/h. Exactly three hours later, the course of the hurricane shifts due north, and its speed slows to v2 = 19.5 km/h, as shown

    asked by Trisha
  13. social science

    To compare one person’s test scores to the scores of all other people who took the test, psychologists must know something about the test’s? projective nature subjective nature length norms

    asked by sindy
  14. Physics

    2) The baseball player throws a curve ball that reaches the catcher in 0.60 seconds. The ball curves because it is spinning at an average angular velocity of 330 rev/min (assumed constant) on its way to the catcher's mitt. What is the angular displacement

    asked by Mike
  15. Christianity

    Okay so during and after the time of Jesus, it was okay for people to marry their relatives. People married their half sister or brother. Even in the 1500s royal families still married their relatives in England. So then how did the the law of not being

    asked by clay
  16. 11th grade-Logs

    log x = 1/2 (log a + Log b - log c) express x in terms of a,b,and c.

    asked by Jess
  17. business

    a. What type of information does managerial accounting provide?

    asked by Barbara
  18. Macroeconomics

    Discuss the differences between a flexible exchange rate and a fixed exchange rate. What measures can the government take to maintain fixed exchange rates?

    asked by Amber
  19. english

    i have to write a literary analysis for the poem, "the tide rises, the tide falls". in the poem ive chosen write abt two elements, imagery and symbolism. and ive to analyse their purpose, effect, and place in the literary work's meaning. thus im just

    asked by bindiya farswani
  20. college

    Do students at various colleges differ in how sociable they are? Twenty-five students were randomly selected from each of three colleges in a particular region and were asked to report on the amount of time they spent socializing each day with other

    asked by Sandra
  21. english

    i have to write a literary analysis for the poem, "the tide rises, the tide falls". in the poem ive chosen write abt two elements, imagery and symbolism. and ive to analyse their purpose, effect, and place in the literary work's meaning. thus im just

    asked by bindiya farswani
  22. math: precalc

    You are going to buy a $18,000 car. The dealer offers you $2000 cash back of nothing down and 0% financing for 60 months. If you take the financing, starting in one month you will pay one-sixtieth of $18,000 each month for 60 months. In some sense that is

    asked by Ajax
  23. psychology

    Unlike psychodynamic approaches to personality, the learning approach emphasizes what? latent personality structures, self-actualization processes, the outer person, biological traits

    asked by sarah
  24. psychology

    Such tests as the Rorschach Inkblot Test and the Thematic Apperception Test are examples of what? projective measures self-report measures objective measures observational measures

    asked by tanya
  25. chemistry

    Having issues with significant figures. 82.420g + 3.24g = 85.66g Would it be 85.7g?

    asked by linda
  26. Biology

    When oxygen uptake is low, a high proportion of the total amount of blood pumped goes to the intestines. When oxygen uptake is high, a small proportion of blood goes to the intestines. Explain the differences in terms of the needs of the body during rest

    asked by Stuck
  27. Pre Cal

    Vertify the identities, clearly show each step (vertify one side that they are equal to each other) sec^2+csc^2=sec^2+csc^2

    asked by Amy
  28. macroeconomics

    (Import Substitution Versus Export Promotion) Explain why domestic producers who supply a good that competes with imports would prefer an import-substitution approach to trade policy rather than an export- promotion approach. Which policy would domestic

    asked by Amber
  29. Math-LOGS

    Express x in terms of a,b and c. log x = 1/2 (log a + log b - log c) Please solve and explain how to do this type of problem, thank you!

    asked by Jess
  30. Physics

    The ball spins at 7.7 rev/s. In addition, the ball is through with a linear speed of 19 m/s at an angle of 55 degrees with respect to the ground. If the ball is caught at the same height at which it left the quarterback's hand, how many revolutions has the

    asked by Christopher
  31. Pre-Calculus

    The Richtr scale was evied y Cahrles F.Richter a American geologist. The scale is based on the equation M(x)=logx/x0(little 0), where x is the seismographic reading of the earthquake and x0 i 1 miron 0.001mm (the seismographic reading of a zero-level

    asked by Andy
  32. Algebra

    I was wondering if someone could check over these answers for me. Find the slope between the set of given points: a) (3,-6) & (-2,-7)=2.6 b) (7,5) & (7,-4) = -9 c) (0,-5) & (16,-5)= 16 I just wondered if the answers I have are right.

    asked by kaci
  33. Math/Algebra

    Write the equation of the line that goes through the point (8,-2) and has a slope of -4. (1 point) Is the answer y=-4x-32 Thanks.

    asked by Kim
  34. social studies psychology

    Observing what a person does under carefully controlled circumstances is a main feature of what? 1.the Thematic Apperception Test 2.behavioral assessment 3.Rorschach methods 4.the MMPI-2

    asked by sandy
  35. Algebra

    | 2 3 5| A=| 1 7 9| |-3 2 10| , |3| B=|4| |1| I need to solve this matrix equation AX = B FOR X BY FINDING A^-1, given A and B as follows. I am new at this did I write A^1 right? This is suppose to be an A with a minus one at the top.

    asked by mike
  36. Physics

    The ball spins at 7.7 rev/s. In addition, the ball is through with a linear speed of 19 m/s at an angle of 55 degrees with respect to the ground. If the ball is caught at the same height at which it left the quarterback's hand, how many revolutions has the

    asked by Christopher
  37. Biology

    Stroke volume is the blood pumped by the left ventricle each time it contracts. During a training run the stroke volume of a person is 0.1 dm^3 (100 cm^3). Calculate the pulse rate at an oxygen uptake of 2 dm^3/min. Is there enough information (there is a

    asked by Stuck
  38. math 214

    Answer each of the following: a. Draw a line l’ and any two points A and B so that AB is parallel to the line. Find the image of l under a translation from A to B. b. Draw a line l and any two points A and B so that AB is not parallel to l. Construct

    asked by brina
  39. Calculus

    Express the four fourth roots of 1/2 + ã3/2 i

    asked by George
  40. math

    I can buy office supplies @ walmart with a 30/10 chain discount. If I paid $47.25 for adding machine. What was the regular price of my purchase? 30/10 chain discount means .70 x .90

    asked by jack
  41. 9th grade

    In, 1914 how many European nations controlled territory in Africa?

    asked by jazz
  42. math

    a wagon retails for 49.97 the store receives a built in 40% profit margin what is the cost

    asked by jack
  43. Introduction to Educational Theory

    How do you feel about this situation? I'm trying to collect opinions from teachers/adults. The Scenario: A teacher assigns an essay. However, on the due date, the teacher says that the he will not accept essays because he has decided to extend the

    asked by Britani
  44. Art History

    Major artistic achievements in the 17th century were seen in A. France B. Spain C. Germany D. England My book is really no help on this question at all... I figured it would be in the Netherlands. My guess would be B. Help please? :]

    asked by Amy
  45. Eli whitney

    How did he invent the cotton gin what makes the cotton gin work

    asked by Anonymous
  46. 4th grade, social studies

    Need to answer "what made the early colonies a success?" Is it because the lands were already explored, so they just got the riches and power? Not sure. Confused. Test tomorrow.

    asked by Elaine
  47. Trig.

    How's the rule go on evaluating compositions of functions? Is it that sine is positive in first and second quadrants, while cos/tan are positive in the first and the fourth?

    asked by Sam
  48. college

    The Dreyfus Affair Who: What: When: Where: Why significant: ** Longer Term Impact to the broader history we are studying: How did it constitute a turning point: Why was it influential beyond its local significance: The Schlieffen Plan Who: What: When:

    asked by Karen Kingsley
  49. accounting

    a. What type of information does managerial accounting provide?

    asked by Barbara
  50. 9th grade

    how do you find volume by the displacement method?

    asked by Anonymous
  51. Amercia

    Should America police the world?

    asked by Troy
  52. business

    Is retail what the stores sale items for?

    asked by kay
  53. Physics

    Could someone please help me with this question. Thank you The person makes a spin through the air, increasing the angular velocity from 3.0 to 5.0 rev/s while rotating through 1/2 revolution. How much time does this it take ?

    asked by Victor
  54. managerial economics

    Suppose a manufacturer estimates its marginal cost at $1.00 per pack, it's own price elasticity at -2, and sets its price at $2.The company's settlement obligations are expected to raise its average total cost per pack by pack by about $.60. What effect

    asked by Marie
  55. calculus

    differential of (dy/dx)=y/x

    asked by Anonymous
  56. physical science

    How much work is done by the gravitational force on an object of mass 9.40 kg that is initially at rest when it falls down for a time of 1.85 seconds. Ignore air resistance

    asked by jhon
  57. French

    Agree with what the French exchange student says about some of the people in your school. Use the indicated noun in each of your sentences. 1.Matt est timide.(un garçon) Oui, c'est un garçon timide! 2.Mrs. Johnson est bavarde.(un prof) Oui, c'est un prof

    asked by Anna
  58. Algebra

    1. Find the slope between the following sets of points. a) (3,-6) & (-2,-7) = .02 b) (7,5) & (7,-4)=-9 Infinity c) (0,-5) & (16,-5)= 0 Are these right?

    asked by Kaci
  59. math

    a ring retails for 39.95. the jewelry store received the ring with a built in 30% profit. What is the cost?

    asked by kay
  60. poetry

    How do you write a List Poetry poem?

    asked by Crystal
  61. Technology

    A watchmaker would work with _____ measurements. a. standard b. precision c. indirect d. Swiss I'm a little confused on this question. I don't think it's A or D. I'm stuck between B and C, but I think it's C-indirect. Is there any tutor that is good in

    asked by y912f
  62. social studies

    1.For one day, keep track of what you do from the time you get up until the time you go to bed. For each hour, record one of these activities: *work *play *school *recreation *other I've made my chart, but I need help on the second part which is: 2.Make a

    asked by Kelly
  63. 8th grade

    Suppose a researcher wants to study the effectiveness of a new reading program for students who have not acquired the necessary reading skills by the time they reach the 8th grade. A randomly selected group of 50 students from a local junior high with poor

    asked by AL
  64. math

    Explain how to solve the equation 2x – 3 = x + 2

    asked by alicia
  65. science

    suggest only one best method to avoid such a collision if a near earth asteroid of radius 50m strikes the earth surface?

    asked by sam
  66. U.S History

    Please help me out with this question. I think I know the answer, but I'm not too sure. Thanks! Monroe's message stated that American foreign policy regarding European conflicts would be (a) neutral (b) de facto (c) nationalist (d) firm but friendly I know

    asked by Maha
  67. Science

    How are fossils made?!?!?!?!?!?!?!?!?

    asked by Tymera
  68. french

    what does tu préféres le français mean in english

    asked by velma
  69. Algebra 1

    We have to factor this: 4y^2-5y+1 I got (4y-1)(y-1) Is this right?

    asked by Ashley
  70. psychology

    Evaluations of a particular belief, person, object, or idea describe a person’s: attitudes motivation predispositions biases

    asked by kelly
  71. math

    how many digits are in the product of 24 and 32

    asked by francine
  72. science

    Suppose a near earth asteroid of radius 50m strikes the earth surface.what could be the impact of such a collision?

    asked by sam
  73. vocab

    how many wods can be made from the word interdepartmental

    asked by me
  74. Technology

    Choose the longest measurement. a. 1 millimeter b. 1 inch c. 1 kilometer d. 1 yard C-1 kilometer

    asked by y912f
  75. french

    what does tu préféres le français mean in english

    asked by velma
  76. math

    Show how to slice a cylindrical piece of cheese into eight congruent pieces with three slices.

    asked by nicole
  77. calculus

    what is the diferential of (dy/dx)=2^x?

    asked by Anonymous
  78. science

    suggest only one best method to avoid such a collision if an earth asteroid strikes earth surface?

    asked by sam
  79. Algebra Question

    How do I write A-1 The minus one is small and at the top but I am new at algebra and this is the first time I had to use this.

    asked by mike