1. PHYSICS

    1. What is the weight of a 2.88 kg snake? 2. A girl drops a rock straight down from a bridge. Assume negligible air resistance. How fast is it going 4.0 s later? 3. A rock with a mass of 22.45 kg is falling from a tall tower. a. What is the Net Force if

    asked by Hayden on December 21, 2012
  2. physics

    A 4.10 kg block is pushed along the ceiling with an constant applied force of F = 81.5 N that acts at an angle è = 52° with the horizontal, as in the figure below. The block accelerates to the right at 5.10 m/s2. Determine the coefficient of kinetic

    asked by Anonymous on December 13, 2014
  3. physics

    A 4.00 kg block is pushed along the ceiling with a constant applied force of 85.0 N that acts at an angle of 55.0° with the horizontal, as in the figure below. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic friction

    asked by john on February 21, 2016
  4. physics

    A 4.8 kg block is pushed along the ceiling with a constant applied force of 87 N that acts at an angle of 55.0° with the horizontal, as in Figure 4-33. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic friction between

    asked by Corey on December 5, 2010
  5. physics

    A 3.40 kg block is pushed along the ceiling with an constant applied force of F = 82.0 N that acts at an angle θ = 50° with the horizontal, as in the figure below. The block accelerates to the right at 5.80 m/s2. Determine the coefficient of kinetic

    asked by Amy Lee on January 12, 2013
  6. Physics

    A 4.4 kg block is pushed along the ceiling with a constant applied force of 89 N that acts at an angle of 55.0° with the horizontal, as in Figure 4-33. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic friction between

    asked by Kashawn on December 2, 2011
  7. physics

    A 3.60 kg block is pushed along the ceiling with an constant applied force of F = 75.5 N that acts at an angle θ = 61° with the horizontal, as in the figure below. The block accelerates to the right at 5.76 m/s2. Determine the coefficient of kinetic

    asked by Lexi on December 11, 2011
  8. physics

    A 4.00 kg block is pushed along the ceiling with a constant applied force of 85.0 N that acts at an angle of 55.0° with the horizontal, as in the figure below. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic friction

    asked by mark on February 21, 2016
  9. Physics to be solved

    The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 55 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an

    asked by Rioster2012 on October 26, 2012
  10. physics help needed very urgent !!!

    The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 55 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an

    asked by helper on October 26, 2012
  11. physics

    The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 65 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an

    asked by help on December 14, 2008
  12. Physics

    I need a step by step visual of how to do this question: A uniform horizontal beam 5.00m long and weighing 3.00x10^2 N is attached to a wall by a pin connection that allows the beam to rotate. Its far end is supported by a cable that makes an angle of 53

    asked by CM on October 24, 2012
  13. physicssssss

    A block with mass m = 14 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4545 N/m after being compressed a distance x1 = 0.515 m from the spring’s unstretched length. The floor is frictionless except for a rough

    asked by aaa on October 8, 2011
  14. physics

    A block with mass m = 14 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4545 N/m after being compressed a distance x1 = 0.515 m from the spring’s unstretched length. The floor is frictionless except for a rough

    asked by a on October 11, 2011
  15. Physics

    A rat with mass 0.5 kg is sliding down an inclined plane. The plane is at an angle of 34⁰ with respect to the ground, and the coefficient of friction between the rat and the plane is 0.2. Simultaneously, a cat is giving the rat a push UP the hill, with a

    asked by Shalece on November 30, 2013
  16. physics

    A 11.0 g bullet is fired horizontally into a 108 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring of constant 151 N/m. The bullet becomes embedded in the block. If the bullet-block system compresses

    asked by please help on November 23, 2010
  17. science

    A 3.00-g bullet traveling horizontally at 500 m/s hits a 4.8-kg wooden block, which is initially at rest on a smooth horizontal table. The bullet buries itself in the block without passing through. The speed of the block after the collision is:

    asked by haddad on August 16, 2015
  18. Physics

    A block (weight= 10kg) is sitting on a surface with friction (coefficient= 0.5). A force (push) is applied to the end of the block, 35 degrees below the horizontal. Calculate the magnitude of the force to move the block.

    asked by Frederic on October 16, 2012
  19. science

    A 1,59 block of wood is placed on the edge of a table 1,2m above the floor.the block is stuck by a bullet,mass 0,01kg,moving @an unknown,horizontal velocity.After the impact,the bullet is embedded in the block,which falls to the floor.the block strikes the

    asked by Karabo on July 12, 2015
  20. Physics

    An object begins at rest on a frictionless inclined plane at a linear distance of 2.0m from the base of the incline. If the incline makes an angle of 20 degrees with the horizontal, determine the time it will take for the object to reach the base of the

    asked by Tim on February 10, 2014
  21. Physics

    Block A, with a mass of 10 kg, rests on a 36.9° incline. It is attached to a string that is parallel to the incline and passes over a massless, frictionless pulley at the top. Block B, also with a mass of 10 kg, is attached to the dangling end of the

    asked by ANON on November 27, 2016
  22. Physics

    A block slides down a frictionless plane having an inclination of θ = 13.2°. The block starts from rest at the top, and the length of the incline is 1.70 m. -> Find the acceleration of the block. (m/s2 down the incline) -> Find its speed when it reaches

    asked by Jack on October 2, 2016
  23. physics HELP!!

    3. A rocket car is traveling on a linear horizontal frictionless track when it suddenly runs out of fuel. The car has achieved a speed of 100 meters per second at the very moment the fuel is completely spent. The track then suddenly changes to a 30-degree

    asked by Katrina on February 20, 2007
  24. Physics

    An aluminum block slides along a horizontal surface. The block has an initial speed of 11.6 m/s and an initial temperature of 10.7°C. The block eventually slides to rest due to friction. Assuming all the initial kinetic energy is converted to heat energy

    asked by Gerry on February 8, 2011
  25. Physics

    A hockey puck of mass .2kg is sliding down an inclined plane with an angle of 15 degrees to the horizon. If the puck is moving with a constant speed, what is the coefficient of kinetic friction between the puck and the plane?

    asked by Cassie on April 20, 2013
  26. physics

    A 280 N block rests on a 30° incline. (a) What is the normal force exerted by the incline on the block? (b) What (static) friction force is needed to prevent the block from sliding down the incline? (c) What is the minimum coefficient of static friction

    asked by Anonymous on June 2, 2014
  27. Physics

    A 4.40g bullet moving with an initial speed of vi = 405 m/s is fired into and passes through a 1.20 kg block. The block, initially at rest on a frictionless horizontal surface, is connected to a spring with a spring constant of 880 N/m. If the block moves

    asked by Anonymous on February 7, 2016
  28. physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 kg 5.5 kg 7.1 kg d) What is

    asked by Anonymous on October 19, 2012
  29. physics

    A block of mass m = 3.53 kg is attached to a spring which is resting on a horizontal frictionless table. The block is pushed into the spring, compressing it by 5.00 m, and is then released from rest. The spring begins to push the block back toward the

    asked by Anonymous on March 25, 2017
  30. Physics

    In a target shooting game, wooden blocks are thrown into the air and shot in flight. A block of 0.8kg has a speed of 10 m/s at the top of its trajectory when it is hit by a bullet from below at an angel 60° from horizontal. The mass of the bullet is 5.0 g

    asked by Mike on March 4, 2013
  31. Physics

    In a target shooting game, wooden blocks are thrown into the air and shot in flight. A block of 0.8kg has a speed of 10 m/s at the top of its trajectory when it is hit by a bullet from below at an angel 60° from horizontal. The mass of the bullet is 5.0 g

    asked by Mike on March 4, 2013
  32. physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 kg 5.5 kg 7.1 kg ) What is

    asked by Anonymous on October 19, 2012
  33. physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 kg 5.5 kg 7.1 kg F a) What

    asked by Anonymous on October 19, 2012
  34. Physics

    Two blocks are in contact on a horizontal, frictionless table. Block 1 has a mass of 4.39 kg and block 2 has a mass of 2.59 kg. A horizontal force of magnitude 8.25 N is applied to the one of the blocks. Find the magnitude of the force between the blocks

    asked by Angela R on July 2, 2015
  35. Physics

    A 20.0 kg crate is pushed across a rough floor for a distance of 90.0 cm. When the force pushing the block is equal to 80.0 N and applied at an angle of 18.0 below horizontal to the block, the block moves at a constant speed of 2.10 m/s. What is the net

    asked by Diana on October 15, 2010
  36. Physics

    a block of mass 1500kg lying steady on horizontal surface of a table needs 200N horizontal force to come in motion. What is coefficient of static friction between the block and the surface of table

    asked by Janmesh patel on August 23, 2015
  37. Physics

    a block of mass 1500kg lying steady on horizontal surface of a table needs 200N horizontal force to come in motion. What is coefficient of static friction between the block and the surface of table

    asked by Janmesh patel on August 22, 2015
  38. Physics

    A bullet with a velocity of 200 m/s is shot at a 2-kg block resting on a horizontal frictionless surface. The bullet imbeds in the block and the bullet-block system slides across the surface with a speed of 5 m/s. A) what is the mass of the bullet? B)The

    asked by Morgan on February 10, 2015
  39. Science

    A horizontal force 10 N is necessary to just hold a block stationary against a wall . The coefficient of friction between the block and the wall is 0.2 . The weight of the block will be ?

    asked by Lalit on April 22, 2014
  40. Physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 417 N horizontal force is applied to the block with mass of 3.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s^2. (the picture looks like this) F

    asked by alice on November 16, 2012
  41. Physics

    A block of mass 3.42 kg is drawn at constant speed a distance of 1.32 m along a horizontal floor by a rope exerting a constant force of magnitude 8.62 N and making an angle of 17.0 degrees above the horizontal. Compute the coefficient of friction between

    asked by CPhy on April 18, 2013
  42. Physics

    A block of mass 3.42 kg is drawn at constant speed a distance of 1.32 m along a horizontal floor by a rope exerting a constant force of magnitude 8.62 N and making an angle of 17.0 degrees above the horizontal. Compute the coefficient of friction between

    asked by CPhy on April 18, 2013
  43. physics

    A block of mass M connected to an untstretched horizontal spring of spring constant k is hit by a bullet of mass m which has a velocity V just before the collision. The bullet stays in the block. The coefficient of friction between the block and surface is

    asked by Peter on April 21, 2011
  44. physics

    A solid uniform sphere is released from the top of an inclined plane .25 m tall. the sphere rolls down the plane without slipping and there is no energy lost from friction. What is the translational speed of the sphere at the bottom of the incline?

    asked by Anonymous on April 30, 2014
  45. Physics

    A spring fixed to a wall is attached to a 6 kg block of wood on the other end. The block rests on a frictionless surface. The spring with spring constant 100 N/m is compressed by 0.1 m and releases. With what frequency and period will the block/spring

    asked by Sarah on February 1, 2015
  46. physics

    1. A 100N block lies on a frictional surface. A force of 50N was applied horizontally where the block had moved 5 m from the positive direction. Find the work done by the applied force and the work done by the weight of the block. 2. Using Example 1, if

    asked by ree on October 16, 2014
  47. physics

    A 2.00 kg block, on a horizontal surface with coefficient of static friction 0.900, is pushed by a force that is directed down at an angle of 30.0 degrees to the horizontal. Find the minimum magnitude of the force needed to get the block to start moving.

    asked by Trace on November 19, 2010
  48. science

    how far will 350 jules raise a block weighing 7n

    asked by christian on March 12, 2012
  49. Physical Science

    How far will 490 Joules raise a block weighing 7 N?

    asked by Morgan on March 7, 2011
  50. Physics, newtons laws

    A 50kg block is being pulled up a 13 degree slope by a force directed 30 degrees above the slope. The coeffcienct of kinetic friction between the block and the slope is 0.200. What is the minimum force required for the block to continue to slide up the

    asked by Naf on October 29, 2012
  51. Physics, newtons laws

    A 50kg block is being pulled up a 13 degree slope by a force directed 30 degrees above the slope.? The coeffcienct of kinetic friction between the block and the slope is 0.200. What is the minimum force required for the block to continue to slide up the

    asked by naf on October 29, 2012
  52. Physics

    A platform rotates at an angular speed of 2.2 rad/s.  A block rests on the platform a distance of 0.3m from the axis.  Static friction coeffient= 0.5.  Without any external torque acting on the system, the block is moved towards the axis.  Ignore the

    asked by Rita on April 28, 2010
  53. physics

    In Figure (a), a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed. The block is initially at rest at the position where the spring is unstretched (x =

    asked by Jin on October 24, 2009
  54. Physics

    A 55-kg block, starting from rest, is pushed a distance of 5.0 m across a floor by a horizontal force Fp whose magnitude is 140 N. Fp is parallel to the displacement of the block. The final speed of the block is 2.35 m/s. A) What work did the friction do

    asked by Amy on February 13, 2012
  55. physics

    the spring that has spring constant of 100N/M. It is compressed 15cm,then launches a200g block. The horizontal surface is frictionless, but the block has coefficient of kinetic friction on the incline is 0.20. What distance block sail through the air?

    asked by simiso on October 18, 2013
  56. physics

    A ball is moving at 18ms -1 in a direction inclined at 60° to the horizontal. the horizontal componet of its velocity is?

    asked by POPPY on April 6, 2019
  57. Physics

    Please help me solve this problem. A plane flying at 75 m/s, was diving at an angle of 40 degrees below the horizontal when one of it's wheels fall off. The wheel hits the ground 8.5 s after it fell off the plane. I know the x and y components of the wheel

    asked by Anna on December 8, 2018
  58. Physics

    A 12.0 g bullet is fired horizontally into a 108 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring of constant 144 N/m. The bullet becomes embedded in the block. If the bullet-block system compresses

    asked by Loucy on December 10, 2010
  59. Physics

    A 2.00 kg block is pushed against a 400N/m spring, compressing it 22.0 cm. When the block is released, it moves along a frictionless horizontal surface and then up an incline. The angle of the incline is 37.0 degrees and the coefficient of kinetic friction

    asked by Timo on June 29, 2011
  60. Physics

    Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been

    asked by Joe on September 19, 2010
  61. physics

    a force 150N is inclined at 50 to the horizontal direction find it component in the horizontal and vertical directions

    asked by Anonymous on October 17, 2018
  62. physics

    Illustrate in diagram a force 150N is inclined a 50 to the horizontal direction find it component in the horizontal

    asked by Mohammad on October 10, 2011
  63. physics

    A mass m = 14.0 kg is pulled along a horizontal floor with NO friction for a distance d =8.7 m. Then the mass is pulled up an incline that makes an angle θ = 27.0° with the horizontal and has a coefficient of kinetic friction μk = 0.41. The entire time

    asked by need of help on October 1, 2012
  64. Physical science

    A force t=312n up and incline is reward to keep a body at rest on a fritionless inclined plane which make an angle of 35degress with horizontal. Draw a force diagram and label all the force acting on a body. Calculate the magnitude of the force due to

    asked by Thulaganyo on February 24, 2015
  65. physics

    A 23.1 kg block is dragged over a rough, horizontal surface by a constant force of 95.0 N acting at an angle of angle 29.3 ° above the horizontal. The block is displaced 5.50 m, and the coefficient of kinetic friction is 0.341. Find the magnitude of the

    asked by Elisabeth on September 15, 2011
  66. Physics

    Two blocks, each with a mass = 0.168 kg, can slide without friction on a horizontal surface. Initially, block 1 is in motion with a speed = 1.28 m/s; block 2 is at rest. When block 1 collides with block 2, a spring bumper on block 1 is compressed. Maximum

    asked by Lilly on March 5, 2012
  67. physics

    Two blocks, each with a mass m = 0.400 kg, can slide without friction on a horizontal surface. Initially, block 1 is in motion with a speed $v$ = 1.20 m/s; block 2 is at rest. When block 1 collides with block 2, a spring bumper on block 1 is compressed.

    asked by Ted on March 5, 2014
  68. P

    A 48-kg block is pushed across a horizontal surface with a horizontal force of 98 N against a friction force of 12 N. The acceleration of the block is

    asked by job on March 5, 2017
  69. physics

    A plane flies at 20.0m/s ascending at 30 degrees above the horizontal. The plane drops a care package at a height that allows the package to land 750m away (horizontally). 1.) At what location above the ground was the package released? 2.) Find the

    asked by Anonymous on May 20, 2015
  70. physics

    A car is sitting at the top of an inclined plane, which is 5.2 meters long and meets the horizontal at an angle of 12 degrees. The cart is then allowed to roll to the bottom of the incline. What will be the velocity of the cart at the bottom of the

    asked by joe on February 25, 2012
  71. trig

    On an inclined road, which makes an angle of 25 degrees with the horizontal plane, stands a vertical tower. At a point Q, 150 ft from the base of the tower down the road, the angle of elevation to the top of the tower is 65. How high is the tower?

    asked by Jendey on May 6, 2014
  72. physics

    A light spring with force constant 3.85 N/m is compressed by 5.00 cm as it is held between a 0.250 kg block on the left and a 0.500 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each block, tending to push them

    asked by Jessi on February 24, 2009
  73. physics

    A 18.4 kg block is dragged over a rough, horizontal surface by a constant force of 126 N acting at an angle of 34.1 ◦ above the horizontal. The block is displaced 20 m, and the coefficient of kinetic friction is 0.123. The acceleration of gravity is 9.8

    asked by allan on January 6, 2015
  74. College Physic

    A 1.54 x 10-2-kg block is resting on a horizontal friction-less surface and is attached to a horizontal spring whose spring constant is 129 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 8.84 m/s, while the spring is

    asked by David on December 11, 2016
  75. Physics

    A 4.07 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 144 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.5 m/s, while the spring is

    asked by Elle on May 2, 2014
  76. Physics

    A 4.07 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 144 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.5 m/s, while the spring is

    asked by Elle on May 2, 2014
  77. Physics

    A 4.05 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 121 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 8.65 m/s, while the spring is

    asked by BrookeNeed on November 30, 2016
  78. Physics- Elena please help!

    A 20.0 g bullet is fired horizontally into a 85 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 156 N/m. The bullet becomes embedded in the block. The bullet block system

    asked by Megan on October 18, 2012
  79. physics

    A 16.0 g bullet is fired horizontally into a 87 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 168 N/m. The bullet becomes embedded in the block. The bullet block system

    asked by Anonymous on October 22, 2012
  80. p

    A 16.0 g bullet is fired horizontally into a 87 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 168 N/m. The bullet becomes embedded in the block. The bullet block system

    asked by Anonymous on October 21, 2012
  81. physics

    A 16.0 g bullet is fired horizontally into a 87 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 168 N/m. The bullet becomes embedded in the block. The bullet block system

    asked by Anonymous on October 21, 2012
  82. Physics

    A 11.0-g bullet is fired horizontally into a 101-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 160 N/m. The bullet becomes embedded in the block. If the bullet-block system

    asked by Kelly on November 11, 2012
  83. physics

    A 4.30 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 43.0 N. The figure gives the block's speed v versus time t as the block moves along an x axis on the floor. The scale of the figure's vertical

    asked by rochelle on September 9, 2015
  84. physics

    A 10.0-g bullet is fired horizontally into a 101-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 155 N/m. The bullet becomes embedded in the block. If the bullet-block system

    asked by lilly on November 11, 2012
  85. Science

    A force of 20N act an object angle of 30 to the inclined plane . The object move 8.0m up the unclined plane what is the workdone by the force plz draw.

    asked by Ibn isah pd. on February 2, 2016
  86. physics

    if the weight of the block,W,is 2.5 kilogram,the coefficient of static friction,0.25,and the coefficient of kinetic friction,0.15,determine: (a) the force necessary to hold the block sliding down (b) the force necessary to pull the block up the plane with

    asked by helpppp meeeeeeee PHYSICS......................... on March 6, 2013
  87. Trigonometry

    A jet plane flying 6000 m above the ground passed directly above Ana. one minute later, Ana noticed that the plane's angle of elevation was 18 degrees 34 minutes. What was the horizontal distance covered by the plane?

    asked by Sheena on November 2, 2013
  88. Physics

    if the speed of the block is 9.5 m/s at the bottom of the ramp, from what height was the block released? what is the length of the ramp?" and i know that the mass is 7 kg, initial veloctity=0, it is frictionless, and inclined at an angle of 62 degreesif

    asked by Ian on October 3, 2011
  89. physics

    crate weighing 6.90 x 10^3 N is pulled up a 46° incline by a force parallel to the plane. If the coefficient of kinetic friction between the crate and the surface of the plane is 0.750, what is the magnitude of the applied force required to move the crate

    asked by nica on September 17, 2014
  90. physics

    A small block on a frictionless horizontal surface has a mass of 2.50×10−2 . It is attached to a massless cord passing through a hole in the surface. (See the figure below .) The block is originally revolving at a distance of 0.300 from the hole with an

    asked by Anonymous on November 17, 2009
  91. Physical science

    The bullet strikes a stationary of 5kg wooden block fixed to a flat,horizontal table.the bulletis brought to the rest after travelling a distance of 0,4m into the block.calculate the magnitude of the average force exerted by the block on the bullet

    asked by Kabelo on April 25, 2016
  92. Physics

    A uniform beam AB of mass 65.3kg rests against the smooth vertical wall at A, and the rough horizontal floor at B, at an angle 45deg. The coefficient of static friction between the beam and the horizontal floor is ì=0.242. Calculate the magnitude of the

    asked by Anonymous on March 6, 2012
  93. physics

    As part of a training schedule a weightlifter pushes a heavy metal block along the floor. The lifter applies a force of 850 N downwards on the block at an angle of 65° to the vertical (25° to the horizontal). The weightlifter pushes the block forwards 4

    asked by alex on February 28, 2012
  94. physics

    How far will 350 joules raise a block weighing 7 newtons?

    asked by tori on March 11, 2010
  95. physics

    how many cubic centimeters are in a block of brass weighing 34 grams?

    asked by izzy on January 9, 2011
  96. Physics

    how do i find the volume of a block of platinum weighing 45.5 kilos

    asked by please help me on January 9, 2011
  97. Physics

    A stunt pilot is attempting to drop a water balloon from a moving airplane onto a target on the ground. The plane moves at a speed of 82.8 m/s and a 49° above the horizontal when the balloon is released. At the point of release, the plane is at an

    asked by Rachael on October 7, 2014
  98. Physics

    An object of mass M = 649 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal. What is the magnitude of the force that is exerted by the inclined surface on the object?

    asked by Lisa on October 10, 2009
  99. physics

    Three identical blocks connected by ideal strings are being pulled along a horizontal frictionless surface by a horizontal force . (Figure 1) The magnitude of the tension in the string between blocks B and C is = 3.00 . Assume that each block has mass =

    asked by sammy on September 29, 2012
  100. Physics/Math

    A 3.0 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 18 N at an angle = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to the

    asked by COFFEE on February 10, 2007