1. Physics

    1. Two blocks on a frictionless horizontal surface are connected by a light string. The acceleration of gravity is 9.8 m/s^2. Find the acceleration of the system. Answer in units of m/s^2. 2. What is the tension in the string between the blocks? Answer in

    asked by Suaad on February 22, 2014
  2. college accounting

    Jim’s Landscaping is in a business of maintaining and improving yards in the surrounding areas. The company bases its overhead cost budgets on the following data: Variable overhead costs: Supplies $4 per yard Machine maintenance $2 per yard Chemicals $6

    asked by Xan on November 4, 2010
  3. Physics

    You want to make an old-fashioned pendulum clock, with a period of exactly 1.4 second(s). Use the Earth's gravitational acceleration g = 9.8 m/s2. a) Ignoring the size of the pendulum bob, from what length wire should you hang your pendulum bob? .4865 m b)

    asked by Ellie on November 5, 2009
  4. Math-Statistics

    It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, minutes of activity varied according to the N(373,

    asked by Kerry on February 21, 2011
  5. physics

    starting from rest, a disk rotates about its central axis with constant angular acceleration. In 4 seconds, it has rotated 50 rad. What was the angualr acceleration during this time? What is the instantaneous angular velocity of the disk at the end of the

    asked by Kristen on January 27, 2008
  6. Physics

    Suppose that a NASCAR race car is moving to the right with a constant velocity of +92 m/s. What is the average acceleration of the car? (b) Twelve seconds later, the car is halfway around the track and traveling in the opposite direction with the same

    asked by Kyle on September 6, 2011
  7. Physics

    A 76.6-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.94 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.15

    asked by Kaleem on February 20, 2015
  8. physics

    A car starts from rest and travels for 7.8 s with a uniform acceleration of 3.2 m/s2. The driver then applies the brakes, causing a uniform acceleration of −1.1 m/s2. If the brakes are applied for 2.8 s, how fast is the car going at the end of the

    asked by Ari on October 30, 2011
  9. Physics

    a 600 gram cart is pulled along a table with no friction by a string attached to a 200g mass hanging over a pulley. find the acceleration. Find the acceleration if the cart is inverted so it slides and the coefficient of friction is 0.2

    asked by Phil Miles on January 6, 2013
  10. Physics

    A rocket with initial mass of 7.50×103 kg is fired in the vertical direction. Its exhaust gases are ejected at the rate of 4.50×101 kg/s with a relative velocity of 2.200×103 m/s. What is the initial acceleration of the rocket? What is the acceleration

    asked by Helen on April 5, 2012
  11. physics

    Superman throws a boulder of weight 1850N at an adversary on the surface of the earth, where the magnitude of the acceleration due to gravity, g = 9.80m/s2 . What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of

    asked by Serginho on October 5, 2014
  12. physics

    The space shuttle has a mass of 2.0 × 106 kg. At lift-off the engines generate an upward force of 30 × 106 N. a. What is the weight of the shuttle? b. What is the acceleration of the shuttle when launched? c. The average acceleration of the shuttle

    asked by Anonymous on August 18, 2011
  13. Physics

    Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed you will experience a constant execrations. Suppose you drive through an entrance ramp at a modest acceleration 3.0 m/s^2. What will the

    asked by Anonymous on October 1, 2016
  14. physics

    A helicopter flies to the right (in the +x direction) at a constant speed of 14 m/s, parallel to the surface of the ocean. A 1200 kg package of supplies is suspended below the helicopter by a cable as shown in the figure: the package is also traveling to

    asked by Jonas on September 27, 2018
  15. Physics

    A drag racer, starting from rest, speeds up for 393 m with an acceleration of +16.3 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.51 m/s2. How fast is the racer moving 3.31E+2 m after the parachute opens?

    asked by L'dya on January 31, 2013
  16. physics

    Initially (at time t = 0) a particle is moving vertically at 5.8 m/s and horizontally at 0 m/s. Its horizontal acceleration is 2.1 m/s2. At what time will the particle be traveling at 54 with respect to the horizontal? The acceleration due to gravity is

    asked by physics on September 24, 2011
  17. Physics

    A drag racer, starting from rest, speeds up for 393 m with an acceleration of +16.3 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.51 m/s2. How fast is the racer moving 3.31E+2 m after the parachute opens?

    asked by L'dya on January 31, 2013
  18. physics

    A computer is reading data from a rotating CD-ROM. At a point that is 0.0382 m from the center of the disk, the centripetal acceleration is 118 m/s2. What is the centripetal acceleration at a point that is 0.0791 m from the center of the disc?

    asked by Anonymous on October 27, 2012
  19. physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +20.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.20 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens?

    asked by demi on August 30, 2010
  20. physics

    Two particles are at the same point at the same time, moving in the same direction. Par- ticle A has an initial velocity of 9 m/s and an acceleration of 2.7 m/s2. Particle B has an initial velocity of 2.9 m/s and an acceleration of 4.2 m/s2. At what time

    asked by Hannah on September 25, 2011
  21. calc.

    The centripetal acceleration of a particle moving in a circle is a=V^2/r where V is the velocity and r is the radius of the circle. Approximate the maximum percent error in measuring the acceleration due to errors of 3% in velocity and 2% in radius.

    asked by Nancy on December 9, 2010
  22. physics

    A computer is reading data from a rotating CD-ROM. At a point that is 0.0382 m from the center of the disk, the centripetal acceleration is 118 m/s2. What is the centripetal acceleration at a point that is 0.0791 m from the center of the disc?

    asked by Anonymous on October 24, 2012
  23. physics

    A computer is reading data from a rotating CD-ROM. At a point that is 0.0316 m from the center of the disk, the centripetal acceleration is 282 m/s2. What is the centripetal acceleration at a point that is 0.0636 m from the center of the disc?

    asked by Anonymous on October 28, 2013
  24. Physics

    In an (x,y) co-ordinates system with x east and y north, an aircraft has the velocity components Vx = -170 ms-1 and Vy = 110 ms-1, and an acceleration of 6.4 ms-2 at an angle od 42 degree from the x axis. What is the angle of the velocity from the x=axis.

    asked by Stupid Alex on July 4, 2012
  25. physics

    A drag racer, starting from rest, speeds up for 384 m with an acceleration of +19.3 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.33 m/s2. How fast is the racer moving 302 m after the parachute opens?

    asked by chris on December 13, 2011
  26. AP physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +23.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.10 m/s2. How fast is the racer moving 2.50 102 m after the parachute opens?

    asked by arian on September 28, 2010
  27. Physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.10 m/s2. How fast is the racer moving 2.55 102 m after the parachute opens?

    asked by yoyoma on August 18, 2010
  28. Physics

    A sprinter starts from rest and reaches his top speed in 4 seconds running with a constant acceleration. He then maintains that top speed and finishes the 100 m in the overall time of 10 seconds. What is his acceleration?

    asked by Drew on February 9, 2010
  29. college physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens

    asked by brittany on February 1, 2010
  30. Physics(Please respond)

    A 79.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.92 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.89

    asked by Hannah on May 28, 2012
  31. Physics

    A 72.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.80 m/s2, N (b) moving upward at a constant speed, and N (c) accelerating downward with an acceleration of

    asked by NHS on September 18, 2007
  32. physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens?

    asked by Anonymous on January 31, 2010
  33. College Physics 1

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens

    asked by james on February 1, 2010
  34. Physics

    A computer is reading data from a rotating CD-ROM. At a point that is 0.0368 m from the center of the disk, the centripetal acceleration is 274 m/s2. What is the centripetal acceleration at a point that is 0.0781 m from the center of the disc?

    asked by Alex on February 20, 2012
  35. physics

    A computer is reading data from a rotating CD-ROM. At a point that is 0.0302 m from the center of the disk, the centripetal acceleration is 284 m/s2. What is the centripetal acceleration at a point that is 0.0803 m from the center of the disc?

    asked by Tyler on January 27, 2017
  36. phsics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +16.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.60 m/s2. How fast is the racer moving 2.90 102 m after the parachute opens?

    asked by Paul on August 23, 2011
  37. College Physics 1

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens

    asked by james on February 1, 2010
  38. finite math

    A company installs different POS computer systems. POS system A requires two hours to configure and one hour for assemble. POS B requires three hours to configure and one hour to assemble. POS C requires two hours to configure and two hours to assemble.

    asked by cheryl on September 22, 2012
  39. Finance

    Consider the following two securities X and Y X y Return- 20.0% Return- 10.0% Standard Deviation- 20.0% Standard Dev 30% Beta- 1.50 Beta- 1.0 Risk-free asset Return- 5.0% Using the data from the table, what is the portfolio expected return and the

    asked by matt on October 19, 2011
  40. Java

    A company is supplying 5 types of soft drinks like Pepsi, Sprite, Orange Soda, Cherry Soda and a new lemon drink to different stores. The company has a new promotion which gives a free dozen of lemon drink and free dozen of cherry drink for every 24 dozen

    asked by Bano on March 13, 2014
  41. Computer

    A company is supplying 5 types of soft drinks like Pepsi, Sprite, Orange Soda, Cherry Soda and a new lemon drink to different stores. The company has a new promotion which gives a free dozen of lemon drink and free dozen of cherry drink for every 24 dozen

    asked by Bano on March 13, 2014
  42. PHYSICS~Acceleration

    What happens to the velocity of an object as it falls if the only force acting on the object is gravity? What happens to the acceleration of the object? Would the velocity be constant? Would the acceleration increase downward?

    asked by Anabelle on November 23, 2010
  43. Science

    which of the following includes the variables needed to demonstrate momentum A. mass and velocity B. mass and acceleration C. time and velocity D.velocity and acceleration I think the answer is A

    asked by Animegirl on October 13, 2015
  44. physics

    a 4.1 kg bucket of water is raised from a well by a rope. The acceleration of gravity is 9.8 m/s^2 If the upward acceleration of the bucket is 2.7 m/s^2 find the force exerted by the rope on the bucket. Use g=9.8 m/s^2

    asked by Anthony on September 25, 2012
  45. physics

    A force acts on a 2kg mass and gives it an acceleration of 3 m/s^2. what acceleration is produced by the same force when acting on a mass of (1) 1kg? (2) 4kg? (3) how large is the force?

    asked by bob on October 25, 2018
  46. Science

    which of the following includes the variables needed to demonstrate momentum A. mass and velocity B. mass and acceleration C. time and velocity D.velocity and acceleration I think the answer is A

    asked by Animegirl on October 13, 2015
  47. Physics

    Two forces of magnitudes 6.0 N and 4.0 N act on a 3.2 kg body. What is the acceleration produced when these forces are acting in the same direction? What is the acceleration produced when these forces are oppositely directed?

    asked by Jenny on September 10, 2016
  48. PHYSICS

    a 72N force accelerates mass m, by 5.0 m/s^2 the same force acts on another mass m2 and imparts to it an acceleration of 20.0 m/s^2. what acceleration will the same force impart to the two masses when they are joined?

    asked by Camz on November 25, 2015
  49. Algebra

    Please tell me how to set this up... The force acting on an object varies directly with its acceleration. A force of 25 newtons accelerates an object at 1.25 m/s. What is the acceleration of a 35 newton force?

    asked by Janice2 on August 16, 2016
  50. Physics

    A book sits on a horizontal top of a car as the car accelerates horizontally from rest.If the coefficient static of friction between the book and the car top is 0.450,what is the maximum acceleration the car can have if the book is not to slip? I remember

    asked by fluffy on September 11, 2006
  51. Physics

    A top fuel dragster can complete a quarter-mile (402 meters) in 4.7 seconds. Assuming that the vehicle starts from rest and that acceleration is constant, calculate (a) the acceleration and (b) the final speed of the top fuel dragster.

    asked by Megan on July 21, 2017
  52. physic

    A person stands on a bathroom scale in a motionless elevator begins to move,the scale briefly reads only 0.75 of th person regular weight(means Fn=0.75mg).Calculate the acceleration of the elevator,and find the direction of acceleration.

    asked by noah on July 10, 2011
  53. Physics

    Mass 1 and mass 2 are connected as shown by a massless, non-stretch rope that passes over a massless, frictionless pulley. The masses are on inclines which have friction. When the angles of the string are as given, mass 1 experiences an acceleration up the

    asked by Zac on July 26, 2012
  54. physics

    Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 2.9 km/s, moving it through only 1.6 cm. (a) What acceleration does the gun give this

    asked by miranda on October 24, 2012
  55. Math

    Mr. Jenkins is going to buy museum tickets for a class trip. The museum director quotes him the following prices: • 20 tickets cost a total of $250. • 30 tickets cost a total of $375. • 50 tickets cost a total of $625. a. Based on these prices, is

    asked by Anonymous on January 15, 2015
  56. Math

    The formula y=1+1.4ln(x+1) models the average number of free-throws a basketball player can make consecutively during practice as a function of time, where x is the number of consecutive days the basketball player has practiced for two hours. After how

    asked by Gage on April 19, 2013
  57. Physics

    "If a small planet were located 8 times as far as the Earth's distance from the Sun, what would be its period in Earth years?" (22.5 earth years) As a note, we are given a table with all of the planets' masses and radii.

    asked by Stuck on July 15, 2010
  58. Accounting

    Accounting for a Job-Order Cost System [LO 3, 6, 7, 9] Bob and Beth Ford retired from the food services industry and began catering wedding receptions on a limited basis. The major costs in setting up their business included: linens, $1,600; two complete

    asked by Patricia on October 1, 2012
  59. geometry

    One thousand raffle tickets are sold for 4.00 each. one grand prize of $800 and two consolation prizes of $ 100 each will be awarded. Jeremy purchases one ticket. Find his expected value.

    asked by angela on July 24, 2012
  60. tax

    What is the amount of the tax liability for a single person having taxable income of $59,200? All answers should be rounded to the nearest dollar. $8,880 $10,925 $10,931 $14,800 is it A

    asked by Andy on May 16, 2012
  61. Math

    One thousand raffle tickets are sold for $4.00 each. One grand prize of $800 and two consolation prizes of $100 each will be awarded. Jeremy purchases one ticket. Find his expected value.

    asked by Jen on July 21, 2011
  62. math

    Three men, A, B, and C upon forming a partnership, invest $1,800, $2,500 and $4,000 respectively. The net profits at year's end amounted to $415. How many dollars should B's share of the profit be?

    asked by Anonymous on April 8, 2009
  63. Math

    One thousand raffle tickets are sold for $4.00 each. One grand prize of $800 and two consolation prizes of $100 each will be awarded. Jeremy purchases one ticket. Find his expected value.

    asked by Jen on July 19, 2011
  64. math

    Three men, A,B and C upon forming a partnership, invest $1,800, $2,500 and $4,000 respectively. The net profits at year's end amounted to $415. How many dollars should B's share the profit be?

    asked by Anonymous on April 11, 2009
  65. 7th grade scientific notation help Ms. Sue

    Write each number in scientific notation. 1. 4,800 2. 17, 200 3. 180,000 4. 343, 502 12. 0.00581 13. 0.00105 14. 0.0000078 15. 0.000027 16. 0.000000132 17. 0.000000009

    asked by Delilah on September 28, 2012
  66. ALGEBRA

    Find the amount of interest and the monthly payment for the loan. Purchase a car for $42,800 at 2.4% add-on rate for 5 years. (Round your answers to the nearest cent.)

    asked by Randy on May 7, 2012
  67. physics

    two planets of masses "m" and "M" respectively. have a center to center separation of "R".At what distance from the center of the planet of mass"M" do the gravitational force of planets cancel each other????? help me plzzz??????

    asked by m sani on April 30, 2012
  68. physics

    Suppose a person weighs 160 pounds on Earth. How much would that person weigh on a planet that was three times as massive as Earth and had a radius that was twice that of Earth's?

    asked by Ruth on September 30, 2011
  69. math

    At a given time, Saturn was 9.1 x 10 to the 8th miles from the sun and the earth was 9.3 x 10 to the 7th miles from the sun. by what distance is one planet closer to the sun than the other planets?

    asked by Veronica on January 15, 2015
  70. physics

    You are driving to the grocery store at 20 m/s. You are 110 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.70 s and that your car brakes with constant acceleration. How far are you from the intersection when

    asked by chidimma on September 15, 2014
  71. Physics

    A flat go-kart track consists of two straightways 100 m long with semicircular ends which have a radius of 25.0 m. A go-kart executes the curved end with a constant tangential acceleration while SLOWING from 12.5 m/s to 5.0 m/s. Determine the magnitude of

    asked by Mia on September 12, 2014
  72. Physics

    A research balloon of total mass 200 kg is descending vertically with a downward acceleration of 3.2 m/s^2. How much ballast must be thrown from the car to give the balloon an upward acceleration equal to 2.8 m/s^2, presuming that the upward lift of the

    asked by Lindsay on November 28, 2007
  73. Physics

    Consider a 52-cm-long lawn mower blade rotating about its center at 3390 rpm. (a) Calculate the linear speed of the tip of the blade. (b) If safety regulations require that the blade be stoppable within 3.0 s, what minimum angular acceleration will

    asked by Jessie on June 14, 2012
  74. Physics

    a blood centrifuge starts from rest and attains a rotational speed of 3400 rpm after 50 seconds. 1) determine average angular acceleration of the centrifgue 2) a 3ml blood sample is contained in a test tube at distance 37.5mm from the centreline. Calculate

    asked by Presh on April 8, 2015
  75. physics

    on an exam i had to day this was the question:A painter of mass 50.0 kg stands on a platform of mass 40.0 kg and pulls on two ropes which hang over pulleys, as shown. He pulls each rope with a force of 400.0 N. Assuming a coordinate system where +y is up,

    asked by Sally on January 29, 2012
  76. physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +17 m/s^2. A parachute then opens, slowing the car down with an acceleration of -6.10 m/s^2. How fast us the racer moving 3.50*10^2 m after the parachute opens?

    asked by Anonymous on November 11, 2008
  77. physics

    A 72.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.53 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.44

    asked by ben on August 12, 2015
  78. Physics

    A 97.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.70 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.80

    asked by Zach on February 18, 2008
  79. Physics

    At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (5.00 m/s2)i hat + (6.00 m/s2)j. It moves at constant speed. At time t2 = 5.00 s, its acceleration is (6.00 m/s2)i hat + (−5.00 m/s2)j. What is the radius of the

    asked by Rach on October 4, 2015
  80. Physics

    A merry-go-round makes one complete revolution in 9.1 s. An 18.8 kg child sits on the horizontal floor of the merry-go-round 4.7 m from the center. Find the child’s acceleration. The acceleration of gravity is 9.8 m/s 2

    asked by Jaleena on January 18, 2012
  81. physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +18.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.30 m/s^2. How fast is the racer moving 2.70 x 10^2 m after the parachute opens?

    asked by Anonymous on August 15, 2010
  82. physics

    A 84.5-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.93 m/s 2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of

    asked by Anonymous on June 10, 2012
  83. Physics

    A 96.6-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.79 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.14

    asked by Tim on November 13, 2012
  84. Physics

    74.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.10 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.00

    asked by Lisa on September 8, 2008
  85. physics

    a 3200-lb elevator cab is supported by a cable in which the maximum safe tension is 4000 lb. (a)what is the greatest upward acceleration the elevator cab can have? (b) the greatest downward acceleration?

    asked by esther on August 12, 2013
  86. Math

    A court is 94ft long by 50ft wide. It has 3 circles each 12ft diameter. Two of the circles are at the free throw line and the third is at the center of the court. Within the 3rd circle is another circle with a radius of 2ft.The key is rectangular region on

    asked by Kimberly on May 17, 2015
  87. ENGLISH

    Which one of the following sentences uses Quotation Marks correctly? A. "Some laws," he intoned,"are made to be broken." B. "Put those books on the shelves, she said Or we'll never be able to locate them again." C. The title of the first chapter in the new

    asked by JORDAN on August 7, 2008
  88. History

    Word box : 1st Amendment, 5th Amendment, Fear that strong gov would violate personal liberties, Baron Charles de Montesquieu, John Locke, responsibilities of citizenship, religous freedom, economic opportuinities, William Blackstone, Adam Smith, Political

    asked by M on December 16, 2014
  89. Socials

    All schools in BC(private and public schools) should be fully funded by the Ministry of Education. I know that there could be Cons to this as well. But Ive got to list the Pros. The Pros - All students should not need to pay to receive education. It should

    asked by Anonymous on April 15, 2011
  90. Biochemistry (Challenging!!)

    A nonapeptide was determined to have the following amino acid composition: (Arg)2, (Gly)2, (Phe)2, His, Leu, Met. 1-fluoro-2,4-dinitrobenzene (FDNB) reacts with free amino (but not amido or guanidino) groups in proteins to produce dinitrophenyl (DNP)

    asked by Peter Parker on February 5, 2012
  91. physics

    Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 2.7 km/s while moving it through a distance of only 2.5 cm. (a) What acceleration does

    asked by javane on November 26, 2010
  92. physics

    On a spacecraft two engines fire for a time of 581 s. One gives the craft an acceleration in the x direction of ax = 5.21 m/s2, while the other produces an acceleration in the y direction of ay = 7.34 m/s2. At the end of the firing period, the craft has

    asked by Sharienia on September 9, 2012
  93. Physics

    On a spacecraft two engines fire for a time of 589 s. One gives the craft an acceleration in the x direction of ax = 5.09 m/s2, while the other produces an acceleration in the y direction of ay = 7.50 m/s2. At the end of the firing period, the craft has

    asked by Genevieve on September 21, 2011
  94. physics

    Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 2.5 km/s while moving it through a distance of only 1.7 cm. (a) What acceleration does

    asked by Anonymous on September 22, 2010
  95. Physics

    Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 4.4 km/s while moving it through a distance of only 1.6 cm. (a) What acceleration does

    asked by Billy on January 14, 2013
  96. physics

    A rocket accelerates straight up from rest for 20 seconds with an acceleration of 8 m/s2. After 20 seconds the rocket motor shuts off and the rocket continues to coast upwards. How high does the rocket go in meters? Details and assumptions You may take the

    asked by urgent answer needed on June 15, 2013
  97. Physics

    A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.16 m while extending the legs. The acceleration during the jump is approximately

    asked by Sasha on February 20, 2011
  98. Physics

    A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 3.00 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance the plane moves.

    asked by Kelly on September 21, 2012
  99. Physics-Mechaincs

    A force of 23.52 N pushes and pulls to blocks as shown in the figure below. The vertical contact surfaces between the two blocks are frictionless. The contact between the blocks and the horizontal surface has a coefficient of friction of 0.29. The

    asked by Genevieve on September 24, 2010
  100. Physics

    An electron is relased into a uniform electric field of magnitude 8.35 N/C. How many times larger is this electrons acceleration than the acceleration due to gravity on the surface of Earth? Is it just F= qE = ma (for the electron, and using E for electric

    asked by ggget PHYSICal on February 5, 2010