# Questions Asked onAugust 6, 2011

1. ## Physics Help

A small, 200 g cart is moving at 1.50 m/s on an air track when it collides with a larger, 2.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s. Q: What is the speed of the large cart after the collision? How do you set this up?

2. ## algebra

Which of the following is equivalent to log 8 16 ?

3. ## algebra

painting is purchased for \$250. If the value of the painting doubles every 5 years, then its value is given by the function V(t) = 250 • 2t/5, where t is the number of years since it was purchased and V(t) is its value (in dollars) at that time. What is

4. ## english

is an executive summary a persuasive message

5. ## physics

Block M = 7.50 kg is initially moving up the incline and is increasing speed with a = 3.82 m/s2 . The applied force F is horizontal. The coecients of friction between the block and incline are s = 0.443 and k = 0.312. The angle of the incline is 25.0

6. ## chemistry

what are the hydronium-ion and the hydroxide ion concentration of a solution at 25 C that is 0.0050 M strontium hydroxide, Sr(OH)2? a solution of hydrochloric acid is 0.20 M HCl. What is the hydronium-ion at 25 C? What is the hydroxide ion concentration at

7. ## Precalculus

If sinx= -1/4 and x terminates in the third quadrant, find the exact value of sin2x My answer is sqrt-15/8

8. ## statistics

the mean height of 25 male workers in a factory is 161 cm and the mean height of 35 female workers in the same factory is 158 cm. find the combined mean of 60 workers in the factory.

9. ## calculus

Consider ∞ ∑ [(3k+5)/(k²-2k)]ᵖ, for each p ∈ ℝ. k=3 Show this series { converges if p > 1 { diverges if p ≤ 1 Hint: Determine the known series whose terms past the second give an approximate match for the terms of this series. This series is

10. ## arithmetic

PLEASE I REALLY NEED HELP WITH THIS The seats at a local baseball stadium are arranged so that each row has five more seats than the row in front of it. If there are four seats in the first row, how many total seats are in the first 24 rows?

11. ## Pre cal

I need help finding the zeros of a function algebraically. And here is one of them f(x)= x^3-4x^2-9x+36

can you help me thank you: 2.Detecting bias is one of the major keys to effective critical thinking and reading. True or False, I believe True 3.Deductively valid arguments can guarantee their conclusions. True or False, I believe it is false 4.A fallacy

13. ## Cre101

"All the great scientists have gone to college. Some of the great athletes have gone to college. Therefore, some great scientists are great athletes." This is an invalid argument. True? Bias can be recognized through___? a.use of poetic language b.

14. ## algebra

Describe the graphs of the functions f(x) = 2x – 3 and g(x) = –2x – 3. Compare and contrast the domain and range of f(x) and g(x).

15. ## algebra

1. What is the equation of the line that passes through (4,-1) and (-2,3)? 2. What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?

16. ## physics

During a snowball ght, your opponent distracts you by throwing a snowball at you with a high arc. She throws snowballs with a speed of 26.5 m/s and the first is thrown at 70.0 degrees. As you are watching the first snowball, she throws a second at a lower

17. ## Physics

A particular Ferris wheel (a rigid wheel rotating in a vertical plane about a horizontal axis) at a local carnival has a radius of 20.0 m and it completes 1 revolution in 9.84 seconds. (a) What is the speed (m/s) of a point on the edge of the wheel? Using

18. ## physics

Lance arrives early at the airport (with owers and balloons in hand) to welcome a friend. Her plane is delayed. While waiting, he notices that it takes 2 minutes 47 seconds to get down the hall on the moving sidewalk. While walking (not on the moving

19. ## physics

To test your friend's claims about his car, you accept his o er of a ride about campus. Not wanting to exceed the speed limit, he claims he can only give a taste of the accelerating ability of his car and not the full proof. You notice, however, that the

20. ## physics

The loaded car of a roller coaster has mass M = 320 kg. It goes over the hig a speed v of 21.4 m/s. The radius of curvature R of the hill is 62.3m (a) What is the force (N) that the track must exert on the car? (positive is (b) What must be the force (N)

21. ## Physics

The fundamental of an organ pipe that is closed at one end and open at the other end is 261.6 Hz ( middle C ). The second harmonic of an organ pipe that is open at both ends has the same frequency. What are the lengths of the pipe? I tried solving it and I

22. ## Manageral accounting

Gallatin Carpet Cleaning is a small, family-owned business ooperating out of Bozeman, Montana. For its services, the company has always charged a flat fee per hundred square feet of carpet cleaned. The current fee is \$28 per hundred square feet. However,

23. ## Precalculus

Find cot x if sin x cot x csc x = .square root 2 After reducing i got cot= square root of 2 Am i correct?

24. ## Physics

A 1.1 kg book is lying on a 0.77 m -high table. You pick it up and place it on a bookshelf 2.3 m above the floor. 1. How much work does gravity do on the book? 2. How much work does your hand do on the book? How do you find work?

25. ## Com 155

For an assignment we write a review about a movie, sporting event or tv show using five adverbs and adjectives. I wrote about the move The Green Mile. My Adverbs will be in all Caps and adjectives (). Please take a look over it and let me know how I did.

26. ## English

Outline of my speech on Aggressive Driving. Is this correct? Topic- Aggressive Driving Introduction •Road Rage oInjuries and deaths oIncreasing road rage oGrowing epidemic •Aggressive Driving oDefinition oTypes Verbal Road Rage Quiet Road Rage

27. ## algebra

What is the sum of the arithmetic sequence 4, 11, 18 …, if there are 26 terms?

Hi I need major help with these question, if you can help me thank you: 1. Critical reading gives us a rational basis for comprehending messages in the contemporary world. True/false I believe it's true Please correct me, thank you.

29. ## Precalculus

How would you solve this trig function: cos2x=sin^2-2 how do you know what trig identities to use?

30. ## chemistry

so i have a table that tell me whether the its a strong/ weak acid/ base but how do i use it to determine whether the equation will favor left or right of the equilibrium?

31. ## Precalculus

2-3cosx=5+3cosx 0 degrees is less than or equal to x less than or equal to 180 degrees Can you please show me step by step in detail. Please do not skip a step. Thanks!

32. ## algebra 2

What is the sum of a 17–term arithmetic sequence where the first term is 7 and the last term is –105?

33. ## English

I really need help finding all the grammatical errors in the passage below. Look for commas, question marks, capitailzation and colons, semi-colons, commonly misused words. I did most of them I just need help in finishing. Students also realize that a

34. ## Precalculus

Find the exact value of sin 15°. I got square root of 2-squaroot of 3/2 is that correct?

35. ## English

I need to write notecards for the speech. How do I going about doing this?

36. ## Algebra

Are these answer"s correct? What is the equation for the line that passes through the (-2,2) and has a slope of 5? Answer- Y=5x + 2 Y=5x +12 Y=5x -2 None of these ¨C I believe this is the answer Find the value of x^3+¡¼2x¡½^2-3 when x =3. Answer- 42

37. ## com155

For the past twenty weeks I have been learning the importance of successful financial planning. (PRESENT PERFECT PROGRESSIVE) Is this a correct present perfect progressive? Would the verbs be learning and planning?

38. ## algebra 2

The number of milligrams of a drug that remains in a patient’s system after t hours is given by the function A(t) = Iert. Jordan was given 350 milligrams of medicine which leaves his bloodstream at a rate of 20%. How much of the medicine remains in his

39. ## Algebra 2

Solve each question algebraically: either using the elimination or the substitution method. 3x-1/2y=5 1/3x+1/4y=3

40. ## com155

By the time I graduate I will have learned the roles education takes in a successful financial plan. (PERFECT FUTURE) Is this verb tense correct? (will have learned)correct verb?

41. ## physics

which of the following is there no net work? A car accelerates down a hill. A car travels at constant speed on a flat road. A car decelerates on a flat road. A car decelerates as it travels up a hill. I say its the first one

42. ## com155

I had been learning about setting financial goals before I learned the role of education in a successful financial plan. (PERFECT PROGRESSIVE PAST) Is this the correct verb tense form? verb - had been learning?

43. ## Algebra 1

I need a quick review. How to factor the following equation: 9x squared - 25

44. ## Algebra

I am trying to find out if my answer's are correct. Can someone please verify. What is the equation for the line that passes through the (-2,2) and has a slope of 5? Answer- Y=5x + 2 Y=5x +12 Y=5x -2 None of these ¨C I believe this is the answer Find the

45. ## com155

I am enrolled in a Personal Finance class that is teaching me the skills I will need to be financially successful. (PROGRESSIVE PRESENT) Is this the correct verb tense? I am enrolled - verb?

46. ## Any

Anyone know anyone that I could find in the internet who never gives up?

47. ## Basic Statistics

In the popular TV cartoon series, "The Simpsons," the Simpson family has five members: Homer, Marge, Bart, Lisa, and Maggie. Let's involve the Simpsons in Simpson's Paradox. Consider Homer and Bart's consumption of potato chips and donuts. Suppose that

48. ## Composition and Communications

I am trying to figure out how to start this paragraph...The question is Explain how purpose, audience, tone, and content impacts academic writing

49. ## values and ethics

is anyone can help me to get an explainationthe question below. please help me for my homework. 1. Explain the standards in choosing a value.

50. ## COMM/155

I need help with this homework assignment. I need to write a 200 word paragraph to explain how purpose, audience, tone, and content impact academic writing. I know what I want to include in the paragrah I just don't know how to start it.

51. ## English/Humanities

I have to make a satire and my teacher says that I have to make SOAPS (Subject, Occasion, Audience, Purpose, and Speaker) anyone know what Occasion and Speaker mean?

52. ## Chemistry

Which measuring device in the Laboratory would be most accurately measure the volume of 25.0 grams of water?

53. ## French

If I wanted to say "Overall, I really liked the movie", would I use "aimer" in the imperfect or past tense. Would it be imperfect because I liked the movie when I was watching it, and I still like it now?

54. ## Physics

Calculate the magnetic flux density in air at a point 15mm from a long straight wire carrying a current of 100A

55. ## Life orientation

Human factor which is smoking a clear explanation for the choice

56. ## dmmsu basic geography

latitude of 35degree north and 70 degree east.30degree north 90degree east.40 degree north 138degree east.

58. ## chemistry

when the wavelength of a photon of light is reduced its momentum is 1) increased 2) decreased 3) not changed

59. ## physics

A glass is slid across a table top, goes of the edge and falls to the floor below. The table is 0.860 m high and the glass lands 1.77 m from the edge. (a) With what velocity (m/s) did the glass leave the table top? (b) What was the direction of the glass's

60. ## chemistry

when the wavelength of a photon of light is reduced its momentum is 1) increased 2) decreased 3) not changed

61. ## chemistry

a reaction which is endothermic in one direction is 1) endothermic in reverse direction 2) exothermic in reverse direction

62. ## calculus

What is the volume of a spherical dome with radius 5.5ft and height 3.5ft?

63. ## Physics

A place kicker must kick the football from a point 34.2 m from the goal and clear a bar 3.00 m above the ground. The ball leaves the ground with a speed of 20.0 m/s at an angle of 53.0 degrees above the horizontal. (a) By how much (m) does the ball clear

64. ## Physics

A ball on the end of a string is moving in circular motion as a conical pendulum as in the figure. The length L of the string is 1.70 m, the angle  is 37.0 degrees and the ball completes one revolution every 2.51 seconds. (a) What is the speed (m/s) of

65. ## physics

A block starts from rest at the top of a 2.00-m long, 16.3 -degree frictionless incline. (a) What is the acceleration (m/s2 ) of the block? (b) How fast (m/s) is it going at the bottom?

66. ## Algebra

1) Is the equation: 28 - 4√2 = 24√2 True? Explain why or why not? 2) Is this statement √a + √b = √(a +b) True? Explain why or why not? 3) What is the index of a radical? When working with radicals, can the radicand be negative when the index is

67. ## physics

A 34.2 -kg block rests on the oor. (a) What force (N) does the oor exert on the block? (b) If a rope is tied to the block and run vertically over a pulley, and the other end is attached to a free-hanging 5.6 kg weight, what force (N) does the oor now exert

68. ## geometry

CONSTRUCT A TRIANGLE WHOSE VERTEX ANGLE IN 60 AND THE OPPOSITE SIDE IS 6 CM. THE ALTITUDE FROM THE VERTEX IS 2.5 CM LONG

69. ## science

true or false taxonomy is the preservation of dead animals please provide a proof(i.e. website if the answer is true)

70. ## english

what is language?

71. ## English

Does Education have to be in caps in the following sentence: Wendy is pursuing a position in the Education field or Wendy is pursuing a position in the education field or Wendy is pursuing a position in education? If I am correct education should not be

72. ## math

Divide 100 loaves of bread amoung five men so that the amounts are in arithmetic progression ( increase by the same amount each time) and the sum of the three largest is seven times the amount of the two smallest.

73. ## math

A furniture store receives an invoice dated Sept. 27 for 5 bedroom sets at \$3,000 each. The invoice indicated a trade discount of 5/8/3. The seller of the furniture prepaid the freight of \$200. Terms were 2/10 EOM. Assuming Mel pays on Nov. 2, what amount

74. ## arithmetic

What is the sum of a 10–term arithmetic sequence where the first term is 3 and the last term is 75?

75. ## real estate law

1. A real estate contract will contain the: (Points: 5) a. credit report of the buyers. b. mortgage information of the sellers. c. hopes and wishes of the buyers. d. terms of the deal. I think is A 2. Most lenders typically require that a borrower purchase