Questions Asked on
August 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?

    asked by Cat21
  2. 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

    asked by Henry
  3. 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

    asked by waqas
  4. 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

    asked by waqas
  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 coecients of friction between the block and incline are s = 0.443 and k = 0.312. The angle of the incline is 25.0

    asked by waqas
  6. 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?

    asked by soka
  7. english

    is an executive summary a persuasive message

    asked by mary ann
  8. 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?

    asked by falcon306
  9. 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

    asked by waqas
  10. 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

    asked by Claire corquette
  11. Physics

    A man standing on very slick ice fires a rifle horizontally. The mass of the man together with the rifle is 70 kg, and the mass of the bullet is 10g. Q:If the bullet leaves the muzzle at a speed of 500 m/s, what is the final speed of the man? I don't know

    asked by falcon306
  12. 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

    asked by AfterLife
  13. 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,

    asked by Belynda
  14. Precalculus

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

    asked by Jess
  15. 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

    asked by soka
  16. 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?

    asked by Jess
  17. Reading

    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

    asked by Naomi
  18. Physics

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

    asked by Ken
  19. 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)

    asked by waqas
  20. 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.

    asked by Anonymous
  21. 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

    asked by Bernie
  22. 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

    asked by Marie
  23. 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

    asked by waqas
  24. 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

    asked by waqas
  25. 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.

    asked by Anonymous
  26. 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

    asked by lizzie
  27. 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

    asked by waqas
  28. 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

    asked by Diane
  29. 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

    asked by waqas
  30. Precalculus

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

    asked by Jess
  31. Precalculus

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

    asked by Jess
  32. 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

    asked by lizzie
  33. 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).

    asked by soka
  34. 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?

    asked by Heather
  35. 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

    asked by Kate
  36. 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

    asked by hazzey
  37. 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?

    asked by Sally
  38. PDPR

    PSYCOLOGY EXLAINATION ABOUT MENTAL FACTORS

    asked by JAYLORD
  39. chemistry

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

    asked by marjani
  40. 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

    asked by sam
  41. 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.

    asked by Sirena
  42. algebra

    Which of the following is equivalent to log 8 16 ?

    asked by soka
  43. 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

    asked by soka
  44. Algebra 2

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

    asked by Sergio Alvarado
  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?

    asked by Heather
  46. 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.

    asked by jessie
  47. 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.

    asked by hazzey
  48. Chemistry

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

    asked by Coleen
  49. Life orientation

    Human factor which is smoking a clear explanation for the choice

    asked by Nomsa
  50. chemistry

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

    asked by marjani
  51. 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?

    asked by waqas
  52. science

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

    asked by kim
  53. english

    what is language?

    asked by zaib.u.nisa
  54. 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

    asked by lizzie
  55. 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

    asked by Adebola
  56. algebra

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

    asked by soka
  57. Critical reading

    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.

    asked by Erika
  58. 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.

    asked by Melisa
  59. 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?

    asked by Henry
  60. 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!

    asked by Jess
  61. algebra 2

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

    asked by soka
  62. English

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

    asked by lizzie
  63. 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?

    asked by Heather
  64. 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?

    asked by Heather
  65. Algebra 1

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

    asked by Sergio Alvarado
  66. Any

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

    asked by Audrey
  67. 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?

    asked by Cassidy
  68. 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?

    asked by dannytan
  69. dmmsu basic geography

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

    asked by jennifer banao
  70. chemistry

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

    asked by marjani
  71. calculus

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

    asked by Charles
  72. 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

    asked by waqas
  73. 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

    asked by Sue Bonds
  74. 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

    asked by Anonymous
  75. arithmetic

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

    asked by soka
  76. 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

    asked by tony
  77. Spanish

    -I conjugated the verb cambiar for you (plural) and it is cambiais. I'm not sure about the pronounciation. Would it be cam-bye-ice? -Is Spanish like French in that if you have two vowel sounds next to each other (la assistencia) you change the first to

    asked by Shea