# Questions Asked onOctober 30, 2007

1. ## Physics

On July 19, 1969, Apollo II's orbit around the moon was adjusted to an average orbit of 111km. The radius of the moon is 1785 km and the mass of the moon is 7.3e22 kg. a) How many minutes did it take to orbit once? b) At what velocity did it orbit the

2. ## History

colonialism in the congo: Conquest, conflict and commerce study guide part 2

3. ## STATISTICS

It is generally believed that electrical problems affect about 14% of new cars. An automobile mechanic conducts diagnostic tests on 128 new cars on the lot. a. Describe the sampling distribution for sample proportion by naming the model and telling its

4. ## Statistics

The mean television viewing time for Americans is 15 hours per week. Suppose a sample of 60 Americans is taken to further investigate viewing habits. Assume the population standard deviation for weekly viewing ime is o = 4 hours. A What is the probability

5. ## physics

A basketball player makes a jump shot. The 0.650-kg ball is released at a height of 1.90 m above the floor with a speed of 8.00 m/s. The ball goes through the net 3.10 m above the floor at a speed of 3.90 m/s. What is the work done on the ball by air

6. ## Chemistry

Hydrogen H2 is used as a rocker fuel. The hydrogen is burned in oxygen to produce water vapor. 2H2 + O2 ----> 2H2O Delta H = -484 kJ What is the enthalpy change per gram of hydrogen?

7. ## Math

Please explain how to figure out the following 7th grade math problem: If a rubber ball bounces exactly 1/2 the height from which it is dropped; and it is dropped from the top of a building that is 64 meters tall, how high will the ball bounce on its

8. ## Chemistry

With a platinum catalyst, ammonia will burn in oxygen to give nitric oxide, NO. 4NH3 + 5O2 -----> 4NO + 6H2O Delta H= -906 kJ What is the enthalpy change for the following reaction? NO + 3/2H2O ---> NH3 + 5/4O2

9. ## math

A model of an airplane is 8 inches long. If the actual airplane is 32 feet: What is the scale factor?

11. ## math

how much whipping cream and 2% milk should be mixed to obtain 35 gallons of milk with 4% butterfat. if the milk has 2% butterfat and the whipping cream has 9% butterfat

12. ## Statistics

A production process is checked perifically by a quality control inspector. The inspector selects simple random samples of 30 finished products and computes the sample mean product weights x. If test results over a long period of time show that 5% of the x

13. ## calculus

dy/dx= (2x-2xy)/(x^2+2y) find all points on the curve where x=2. show there is a horizontal tangent to the curve at one of those points.

14. ## Chemistry

Calculate the molar solubilty of CaC2O4 in a solution that has been buffered to a pH of 4.00 Remember to account for reactions involving H2C2O4 acting as an acid in water. To account for the buffer, simply assume that H+ = 1.00X 10^-4

15. ## science

Q1: What rock comes before quartzite in the rock cycle? What rocks or rock could come just after quartzite in the rock cycle? Q2: A geologist finds a course grained rock with crystals arranged in rows. What can the geologist infer about how this formed and

16. ## calculus

f*(x) = lim as h -> 0 [f(x+h)-f(x-h)]/ h write an equation that expresses the relationship between the functions f*(x) and f` I know that f` is [f(x+h)-f(x)]/h but i have no clue how to write an equation to relate the two!!!

17. ## finance

can someone correct these for me when you have a few minutes i'll appreciate any help thankyou.my answers are in parenthesis thanks again. Indicate whether a debit or credit decreases the normal balance of each of the following accounts: a. Office Supplies

18. ## History

why did leopold want to defeat the swahili traders in the eastern areas?

19. ## Best words that describe.....

What's a word that describes "to put things in action"? Ex. People fail to realize the plan "in action" is a scam. And another word that describes "buys"? Ex. She "buys" the loyalty of her friends.

20. ## Math-word problem

Sarah rents a car to take her to the airport in the morning and return her home that evening. Halfway to the airport, she picks up a friend who accompanies her to the airport. That night, she and her friend return to Sarah's home. The total cost is \$20.00.

21. ## algebra

When am I ever going to use negative exponents in real life?

22. ## current history

can anyone name two contrasting conflicts that have to do with nationalism around the world ( ex. one conflict could be between teo religious groups.....)

23. ## physics

A doubly tethered model airplane of mass 1.0 kg is attached to a vertical rod by two very light strings that are 2.0 each in length. the airplane and the the strings rotate in a horizontal circleabout the rod with both the strings remaining taut.The

24. ## Physics

A circus performer wants to land in a net 5 meters to the right of where she will let go of the trapeze. If she is 10 meters above the net, how fast must she be moving horizontally when she lets go?

Please if the paragraph flows well, makes sense and if it analyzes why the use of wealth is significant in Claudius's part in Hamlet. Claudius uses the royal fortune for his own personal needs to satisfy himself. The King of Denmark uses his royal assets

26. ## history

how did king leopold develop his image as a great humanitarian leader?

27. ## please revise my two paragraphs of my essay

Nuclear power plants have been a controversy issue in our world for many years and it will continue to be so in the years to come. The issue of whether people should or shouldnâ€™t accept power plants to be operated has been widely debated among

28. ## management

Can someone give me their opinion of my answer if its correct or wrong please when someone has a few minutes thanks. Which of the eight steps in the decision-making model could be eliminated if a decision had to be made quickly? 1. Be alert to indicators

29. ## Algebra

Ok I got two I need help with : 1. Factor Completely 7x^2 + 49x + 42 I get 7x^2 + 7x + 42x + 42 then 7x(x+1) but the right side is confusing me. I know it should be (x+6). So the answer is 7x(x+1)(x+6) But I get 7x(x+1) 7(6x+6). What am I doing wrong?

30. ## Statistics

In 1990, the average annual Medicare spending per enrollee was \$3267; in 2003, the average annual Medicare spending per enrollee was \$6883. Supposed you hired a consulting firm to take a sample of fifty 2003 Medicare emrollees to further investigate the

31. ## Cultural Diversity

Can someone please help with this question on my assignment? A culture's emphasis on autonomy or dependence impacts adult-child interaction. Of the following choices, the ____________cultures are most closely aligned in valuing dependence or autonomy. A.

32. ## Chem

What are the organic side reactions and products that can occur when 1-butanol is treated with NaBr and H2SO4? Any help would be great, thanks.

33. ## Vocabulary

I am reading the book Great Expectations by Dickens and need help with the following: I need definitions for these words: divine(verb) discomfiture disparage conciliatory larcenous supplicant retributive diffidence despotic squally I've looked them up in

34. ## history, current issues

what are types of nationalism conflicts...like there are religious conflicts that include nationalism but what others are there...examples please from current conflicts

35. ## Science

A Parking Lot is full of automobiles. Does the number of wheels in the lot depend on the number of automobiles.

36. ## microbiology

What is a unique mono-nucleotide of the RNA? Is it GMP AMP TMP CMP or UMP thanks

37. ## art history

Which of the following structure is indigenous in China? >pagodas >obelisks >mastabas or >totem poles? I think the answer is totem poles.

38. ## intro of my essay

Nuclear power plants have been a controversy issue in our world for many years and it will continue to be so in the years to come. The issue of whether people should or shouldnâ€™t accept power plants to be operated has been widely debated among

39. ## Psychology

I need help in finding information for the following assignment. Compare and contrast the influence of heredity and hormones on human behavior. I can find info on heredity and behavior but not a combination of hormones and heredity.

40. ## history

how was the iliad time and when they ocurred?

41. ## Math

A microscopic organism is shown in a biology book with the length of 5.6 centimeters. If the scale of the picture is 2000:1, find the actual length of the organism.

42. ## Math

Choose 5, 10, or 100 as the most reasonable interval for the data. 15, 25, 10, 10, 5 Please explain Thanks

43. ## Math

if 2r=5s and 5s=6t what does r equal in terms of t?

44. ## math

How do I find the area of a 30 ft circle?

45. ## economics

Where does Bexar County rank among texas counties in per capita income? Where does Cameron County rank among texas counties in per capita income? what was the inflation rate in hungary in 1945-1946?

46. ## human risk assessment

What are the advantages and disadvantages of animal studies and epidemiological studies for establishing dose-response relationships?

47. ## math

2x + y = 5 5x + 3y = 11 solve by addition?

48. ## Partial derivative

Hello I trying to do a problem on partial derivative. I know the partial derivative of 3x+2y with respect to x would be 3 and with respect to y would be 2. But wut if it is squarroot of 3x+2y, wut is the partial derivative of it with respect to x and y

49. ## english

what is direct speech

50. ## math

it wants to solve multi-step inequalities. Question: -5X-(2X+3)>1 - > - =equals to if u didn't know wut i was talken bout

51. ## Math

simplify:2x+10-22

52. ## computer networks.

Question 1 (PIM) Assume you have a source S, and assume that some receivers have joined the shortestpath tree of S, while other receivers have joined only the shared tree. Prove that, if the network is in a steady state (no routing table changes, no

53. ## ss

List two reasons european countries wanted to start new colonies in america?

54. ## Physics

A 3.3 kg wooden block is placed on 22 degree inclined plane and is connected by a string that passes over a light friciton less pulley at the top of the incline and then attached to a hanging 3.0kg block.If the coefficient of static friction bet the 1st

55. ## Algebra

Im not even sure what this is called, teacher call's it Multi-Step Equation. What are the steps to solve this problem 5X=X-12 AND X/3+5=14

56. ## English-Lord of the flies

How Jacks behaviour contrasts Ralphs and how that presents ralph as a better person.

57. ## SCI 275

define environmental sustainability. Then, list three behaviors of your own that threaten environmental sustainability. How could you change those behaviors to reduce threats to environmental sustainability?

58. ## SCI 275

Reflect on your own worldview and compare it with the three worldviews presented in the text. Provide examples of the benefits of your view to defend your position.

60. ## SCI 275

Discuss an enviromentmental problem that you feel is significant in your town or city?What are some causes? Are there any of these causes related to human values and enviromental ethnics? Explain.

61. ## social studies

need help with a speech about the strong will of charles perkins

62. ## Math

Factor each expression. Please show me how to do it. Thanx 8x^2-10x+3 15X^2-x-2 8X^2-18X-5 2x^2-5x-88 3x^2+43x-30 3x^2+7x-2 10^2-89x+156 4x^2+11x+13 3x^2-42x+147 5x^2-20x+20

63. ## science

does smell affect ability to taste colder substances? does smell affect ability to taste warmer substances?

64. ## geophysics

how would you exaplain how and why each of the four moon phases appear to look like they do to us here on earth?

65. ## Algabra

I understand the part's of algerbra, i just can't figure out why people use multiplacation tables to figure out the symbol for the block cube curriculem inside of the finder's surronding. Why do they?

66. ## geometry

Wrtite the slope intercept form of the equation of the line passing through point (5,1) and parallel to the line y=-4x-2.

67. ## essay info help

i'm doing an argument essay on why power plants should be shut down my college is like ten miles away from this power plant so it a very big issue in my town and i want to argue against power plants. i wrote down all my arguements, but i need help coming

68. ## English: DEBATING!

Hi I need help I am finding my topic quite difficult. I am the 1st speaker for affirmative team with the topic: That in life there are more snakes than ladders." Its a difficult research/investigating topic, so I'm not sure what to say, and how to do my

69. ## Journalism

If blue chippers are involved, what sport is that?

70. ## Science

Okay, is a Internal Fracture a fracture that doen't involve surgery...or is that a External?

71. ## music

what is an accidental? thanks.

72. ## ss

Who financed the settlement in America for england?

73. ## ss

What did virginia Company choose for their new home, a boat, a peninsula an island or the woods?

74. ## vocab

A political play is a(n) __________ of the government. a. argot b. satire

75. ## science

whats an example of an electric discharge

76. ## Biography

I am looking for some great, useful sights on Walt Disney for a biography I am working on. Please and thank you.

77. ## Social Studies

Is nortordomes predictings true will the world end in four years?

78. ## pre-algebra

how do you multiply and divide inequalities and work the problem out???

79. ## Biology

What is a subunit? How can I determine where Docosahexaenoic Acid has a subunit?

80. ## MATH

HOW DO YOU GRAPH THIS EQUATION AS A LINEAR EQUATION Y=-1

81. ## science

how do you determine which direction cells will move toward membrane?

82. ## science

Where does calcite come from?

83. ## Art

How does art and design affect peoples cultures, lifestyle, religion and fashion?