Questions Asked on
June 25, 2012

  1. physics

    A 380- piano slides 3.8 down a 22 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. a.Determine the force exerted by the man. b.Determine the work done by the man on the piano. c.Determine the work done by

    asked by Anonymous
  2. business finance

    Hot Wings, Inc., has an odd dividend policy. The company has just paid a dividend of $11.25 per share and has announced that it will increase the dividend by $9.25 per share for each of the next four years, and then never pay another dividend. Required: If

    asked by james
  3. U.S. GOVERNMENT

    1)The federal government has more expressed powers than implied powers. A) True B) False 2)Two inherent powers of the federal government are to regulate immigration and deport aliens. A) True B) False 3)Implied powers are essentially granted through the

    asked by Booker Perry
  4. PHYSICS

    3 FORCES ACT ON MOVING OBJECT.FIRST FORCE HAS MAGNITUDE OF 80.0N AND DIRECTED DUE NORTH.ANOTHER HAS MAGNITUDE 60.0N AND DIRECTED DUE WEST.WHAT IS THE MAGNITUDE AND DIRECTION OF THIRD FORCE,SUCH THAT THE OBJECT MOVE IN CONSTANT VELOCITY?

    asked by Anonymous
  5. Statistics

    A study was conducted in order to estimate u, the mean number of weekly hours that U.S. adults use computers at home. Suppose a random sample of 81 U.S. adults give a mean weekly computer usage time of 8.5 hours and that from prior studies , the population

    asked by Pat
  6. Statistics

    How large a sample of U.S. adults is needed in order to estimate U with a 95% confidence interval of length 1.2 hours?

    asked by Pat
  7. math

    a boy is 17 years old and his sister is as twice as old. when the boy is 23 what will be the age of his sister

    asked by deni
  8. Physics

    The track near the top of your favorite roller coaster has a circular shape with a diameter of 36 m. When you are at the top, you feel as if you weigh only one-fifth of your weight on the ground. What is the speed of the roller coaster?

    asked by Sierra
  9. Chemistry

    We did a lab to find the atomic mass of Magnesium. We used an eudiometer and HCL and a mg ribbon. Explain in terms of moles, limiting reactants and experimental feasibility, why we use concentrated HCl (12M) instead of 1M or 6M?? Would the calculated

    asked by Denise
  10. chemistry

    What is the percentage purity of sample if 3.92g of mohr's salt react completely with 50 ml N/10 Kmno4 solution

    asked by ketaki
  11. Physics

    The Moon orbits the Earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the Earth and the Moon and that the mass of the Earth is 5.98 x 1024 kg. Find the period for the Moon's motion around the Earth. Express the answer

    asked by Jay
  12. microbiology please answer.

    What are the advantages and disadvantages of using wet mount preparation instead of stained specimens to observe microorganism?

    asked by bing
  13. Physics

    Mars has two moons, Phobos and Deimos. It is known that the larger moon, Phobos, has an orbital radius of 9.4 106 m and a mass of 1.1 1016 kg. Find its orbital period.

    asked by Sierra
  14. math

    Figures obtained from a city's police department seem to indicate that of all motor vehicles reported as stolen, 61% were stolen by professionals (P), whereas 39% were stolen by amateurs (primarily for joy rides) (A). Of those vehicles stolen by

    asked by Anonymous
  15. algebra 1

    Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions. 5x=y=15 3x+2y=9

    asked by Anonymous
  16. biology 2

    The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. Discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. If methods were developed to improve the

    asked by sheehan
  17. Physics

    The track near the top of your favorite roller coaster has a circular shape with a diameter of 36 m. When you are at the top, you feel as if you weigh only one-fifth of your weight on the ground. What is the speed of the roller coaster?

    asked by Sierra
  18. math

    Jack and Jill run 10 kilometers. They start at the same point, run 5 kilometers up a hill, and return to the starting point by the same route. Jack has a 10-minute head start and runs at a rate of 15 km/hr uphill and 20 km/hr downhill. Jill runs 16 km/hr

    asked by hemant mishra
  19. Physics

    The region of the solar system between Mars and Jupiter contains many asteroids that orbit the Sun. Consider an asteroid in a circular orbit of radius 4.3 1011 m. Find the period of the orbit.

    asked by Sierra
  20. chemistry

    5.0g of magnesium metal reacted with 1000cm3 of 4.5M of HCl solution to produce hydrogen gas. Calculate the amount of HCl left and the number of hydrogen molecules produced

    asked by Shaibu Abdulai
  21. Physics plz help

    (a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3-kg mass to drop 1.0 m in 1 week. What percentage of the

    asked by Ally
  22. algebra2

    What is the value of the discriminant for the quadratic equation 2a2+ 7a + 3 = 0? Please Help!

    asked by laltk
  23. Physics

    A ladder of mass 39.4 kg and length 2.88 m is leaning against a wall at an angle θ. The coefficient of static friction between ladder and floor is 0.282; assume that the friction force between ladder and wall is zero. What is the maximum value that θ can

    asked by James
  24. economics

    Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specification:

    asked by Anonymous
  25. anth

    why is anthropology necessary in a career/life?

    asked by kelly
  26. Physics

    A mass of 60kg is on the edge of a plank. The Plank is 25 m long. There is a wedge 10 m from the 60 kg. Where would you position a 40kg so the plank would not rotate? If you placed the 40 kg at the end, where would you put a 10 kg mass to keep it balanced?

    asked by Terry
  27. Precalculus

    Given sinx= -1/8 and tanx

    asked by Jake
  28. Precalculus

    If Sin A=3/5 and cos B= -12/13, find the value of sin(A-B) if Angle A is in Quadrant I and angle B is in Quadrant III.

    asked by Sammy
  29. Physics

    2 queations: 1) a proton enters a magnetic feild at a right angle to the field. an alpja particle enters the same field at the same angle but with twice the speed. once in the magnetic field both particles move in a circular path. the raito of radius of

    asked by Anonymous
  30. Physics

    Uranus makes one complete orbit of the Sun every 83.8 years. Calculate the radius of the orbit of Uranus. Hint: It is a very good approximation to assume this orbit is circular.

    asked by Sierra
  31. Physics

    The average human has a density of 950 kg/m3 after inhaling and 1018 kg/m3 after exhaling. (a) Without making any swimming movements, what percentage of the human body would be above the surface in the Dead Sea (a lake with a water density of about 1230

    asked by Betty
  32. chemistry

    5.0g of magnesium metal reacted with 1000cm3 of 4.5M of HCl solution to produce hydrogen gas. Calculate the amount of HCl left and the number of hydrogen molecules produced

    asked by Shaibu Abdulai
  33. algebra2

    Which choice could be the equation of a line perpendicular to the line represented by this equation? Which choice could be the equation of a line perpendicular to the line represented by this equation? y = 5x− 2 help please!!

    asked by 26kllt
  34. English

    1. Oh, this is him. - Right. 2. Oh, this is he. -Right. (Which one is right or grammatical?)

    asked by rfvv
  35. Grammar

    Instructions: Add commas where needed in the following sentences. Some sentences may not require commas. (Rule 2a) Work: 1. Students parents teachers and visitors attended the school play. -So i put the commas between students and parents, and i put it

    asked by Losa
  36. Physics

    (a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3-kg mass to drop 1.0 m in 1 week. What percentage of the

    asked by Ally
  37. Algebra II

    If Y varies inversely as X^2, determine what Y would be if X=2 and another point on the equation is (1,8) How would I go about working this problem out?

    asked by Greg B.
  38. Physics

    A 2 kg mass hangs at rest from a spring that causes a displacement of 25cm. What is the spring constant, k, for this spring?

    asked by Wanda
  39. psychology

    Write a paper that describes the character’s personality in terms of the Big Five personality traits.

    asked by anon
  40. Physics - wavelenth of blue light

    How do i find the wavenelgth of blue light?

    asked by Anonymous
  41. math

    th whole arc making up the circle measures 360

    asked by tata
  42. algebra2

    If the discriminant of a quadratic equation is equal to zero, how many real solutions does the equation have? A. 0 B. 1 C. 2 D. 3 please help!!

    asked by laltk
  43. Six Sigma

    Period Cycle Time 1 45 2 33 3 44 4 30 5 51 6 47 7 39 8 34 9 69 10 43 11 29 12 38 13 45 14 49 15 73 16 38 17 50 18 40 19 57 20 36 21 31 22 46 23 40 24 51 25 48 26 37 27 42 28 50 Calculated R-Bar: Upper control limit for the range: Upper control limit for

    asked by Dave
  44. Statistics

    Test a claim p=0.5 with the significance level of 0.05 and n=49 calculate beta when the true probability porportion is 0.7.

    asked by meena
  45. algebra ll

    Solve for f. (f - 12)2 = 25 A. f = 5 or f = −5 B. f = 12 or f = −12 C. f = 17 or f = 7 D. no solution

    asked by leo
  46. geometry

    conditional statements

    asked by Priscila
  47. statistics

    a the gym i notice women tend to work out together more then men. males together at gym 5 alone 7 women alone 6 together 6 what statistical test should i use what is the Ha and Ho what is the appropriate analysis and should the Ho be rejected

    asked by dave
  48. RES/351

    the business research process by describing the business research process from your experience in the workplace or in an article you find through the University Library I don't have anyh experience does any one know of an article I could use?

    asked by a
  49. psychology 240

    Factors that Determine What, When, and How Much We Eat, in the text, does your personal experience support these concepts? Why or why not? Provide examples

    asked by cynthia
  50. math 091

    s+(-s)+1/9(9)

    asked by beth
  51. Physics

    If a car accelerates from rest to 15 m/s for a distance of 200 m. What is the magnitude of acceleration?

    asked by Lollie
  52. U.S. GOVERNMENT

    Could someone PLEASE help me understand Due process. THANK YOU!!!

    asked by Booker Perry
  53. dressmaking

    IN making a two-piece flared skirt,the amount of flare is limited by the A) length of the skirt B) type of fabric C) size of the figure D) tendency to sag I cant decide between A,C or D because it does mention that if more flare is wanted,allow greater

    asked by Sarah
  54. History

    Following World War II, what factors led to Japan's economic success? A. The adoption of eastern economic philosophy that emphasized supply and demand economy. B. The concentration on the production of high-quality agricultural products C. Efficient,

    asked by Chicken
  55. Social studies

    1. How many legs does a grasshopper have? 2. How many legs does a spider have?

    asked by rfvv
  56. U.S. GOVERNMENT

    1)West Virginia has to honor a marriage that was granted in Indiana. A) True B) False 2)The National Government expects the money States receive from grants-in-aid programs to be used for certain items that it approves. A) True B) False 3)The National

    asked by Booker Perry
  57. english

    we ________ _____________ started our trip earlier in the morning. fill it in with a helping verb

    asked by Taylor
  58. English

    1. Oh, this is him. - Right. 2. Oh, this is he. -Right. (Which one is right or grammatical?) English - Writeacher, Monday, June 25, 2012 at 9:57am #2 is the grammatically correct one. ----------------------------- Thank you. Q1) Can we use "This is him."

    asked by rfvv
  59. government

    What does the term “filibuster” mean, and how is it used by individual Senators and for what purposes? What does “cloture” mean, and how is it used by the leadership of the Senate and for what purposes? What is your opinion of these

    asked by carlos
  60. physics

    if the reaction time is 10.0s, how far will the car travel before hitting the brakes? Vf = 27.42 m initial speed = 80 km/hr coefficient of friction = 1.00

    asked by jb
  61. geometry

    the arc length of AB is 2^pi ft. find the radius of the circle ABC=43 degree. round your answer to the nearest hundredth.

    asked by Nancy
  62. Foreign languages

    Writeacher, could you please check these sentences? Thank you. 1) Who was Henrietta Lacks? In what way did she contribute to the study of cancer? 2) Is it possible to stop the aging process? How did Lord Henry define beauty and old age respectively? 3) Who

    asked by Mike
  63. Art

    I left out the following questions. Could you please check them? 1)In the English section of your dissertation you focused on Emily !@#$%^&inson whose unsatisfied hunger (starvation) seems to be above all an emotional one. 2)How did her own life influence

    asked by Mike
  64. history

    9. Elias Howe invented which of the following?

    asked by Sam
  65. calculus

    Okay, so I have this problem... this was the original: (t^2-1?t^2+1)^3 and then I got the derivative which looked like this after I finished all the other steps: 3(t^2-1/t^2+1)^2d(t^2+1)(2t)-(t^2-1)(2t)/ (t^2+1)^2 So now, the answer is 3(t^2-1/t^2+1)^2d

    asked by gagaformath
  66. Finance

    YOU DEPOSIT $5,000 INTO THE FIRST NATIONAL BANK OF FIN 301 AND EARN 2.5% COMPOUNDED CONTINUOUSLY. HOW MUCH WILL YOU HAVE IN 5 YEARS?

    asked by JAMIE
  67. physics

    How high will a 1.95 rock go from the point of release if thrown straight up by someone who does 66.5 of work on it? Neglect air resistance.

    asked by Anonymous
  68. English

    1. I like apples and small. 2. I like apples and smalls. (#1 seems to be wrong. What about #2? Is Sentence two correct?)

    asked by rfvv
  69. Case Study

    Identify and give examples of three techniques you would use to explore Sally's story. Your examples should be worded as if you are actually speaking to the client. What goals would you want to identify for Sally, based on the information available?

    asked by Audrey
  70. Kinder math

    Cover the teddy bears in the top row with different color teddy bear counters. Color the teddy bears in the bottom row to show the colors.

    asked by Stela
  71. government

    what is a good example of cloture?

    asked by carlos
  72. Math

    A student answered the following skill-testing question to try and win a prize: (-4)^3-(-2)^4/2^2+5^2*7^0 The students answer was 5. Did the student win the prize? I couldn’t seem to figure out how to answer this question. I got the answer -13, but my

    asked by Erika
  73. Physics - Half life

    an artifact has a starting mass of C-14 of 200 g and a remaining mass of 0.78125 g. how old if the artifact? [4.58^4 years]

    asked by Anonymous
  74. Bio

    I have a 67% in bio and our final exam is worth 30%. how much would I have to get on the exam to pass the course?

    asked by Rebecca
  75. physics

    if a neutral shere and a sphere with a charge of 14 C are brought together, then separated, what would be the charge on each sphere

    asked by charles
  76. physics

    if a train is travelling with a speed equal to light and a girl is running inside it in the way the train is running.an observer see the girl from outside running.what is the speed of the girl AND WHY??

    asked by mukul bawa
  77. algebra

    each of numbers below is is a solution of the inequality 2x + 3 > 7 .. except ... 3 6 1 5

    asked by ahnaliyah
  78. Maths - Ant Colony

    A colony of ants is growing so that the total number of ants present, A, after a number of weeks, t, is shown in the table. t 5 10 15 20 25 30 A 140 200 280 400 570 800 The food supply available is such that it can feed A ants at any given time, t

    asked by Sinha
  79. World History

    I am hoping someone would be able to assist with a multiple question I have. The answer I have is B that Germany disassociated/distanced themselves from it. However, other resources denote Germany did claim/denied that it ever happended. This is very

    asked by Myst
  80. English

    1. It is green and yellow. 2. It is green but yellow. 3. It is green but not yellow. 4. It is green or yellow. (Which one is not grammatical? Thank you!)

    asked by rfvv
  81. ateneo

    why do people need to follow rules? Use "looked in a dictionary in a sentence as subject-predicate.

    asked by julian
  82. maths

    subtract- a). 5/12 from -7/12 b). -5/12 from 0 c). -5/9 from 7/9

    asked by JOSHI KRATIKA>>>>>>
  83. Physics

    Find the gravitational force of the Sun on Jupiter.

    asked by Sierra
  84. Physics

    The pressure-volume graph shows an engine cycle where the working substance is an ideal monatomic gas (γ = 5/3). The process A-B is adiabatic. At point A, the pressure is 2.70×105 Pa and the volume is 0.0180 m3. At point B, the volume is 0.0450 m3.

    asked by Jamie