# Questions Asked onDecember 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

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

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

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?

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

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?

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.

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

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

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

11. ## Organic Chemistry

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

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

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

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

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

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

a. What type of information does managerial accounting provide?

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?

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

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

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

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

23. ## psychology

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

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

25. ## chemistry

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

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

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

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

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!

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

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

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.

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.

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

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.

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

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

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

39. ## Calculus

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

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

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

42. ## math

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

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

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? :]

45. ## Eli whitney

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

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.

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?

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:

49. ## accounting

a. What type of information does managerial accounting provide?

how do you find volume by the displacement method?

51. ## Amercia

Should America police the world?

Is retail what the stores sale items for?

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 ?

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

55. ## calculus

differential of (dy/dx)=y/x

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

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

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?

59. ## math

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

60. ## poetry

How do you write a List Poetry poem?

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

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

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

64. ## math

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

65. ## science

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

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

68. ## french

what does tu préféres le français mean in english

69. ## Algebra 1

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

70. ## psychology

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

71. ## math

how many digits are in the product of 24 and 32

72. ## science

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

73. ## vocab

how many wods can be made from the word interdepartmental

74. ## Technology

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

75. ## french

what does tu préféres le français mean in english

76. ## math

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

77. ## calculus

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