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A ball rolls off a tabletop with an initial velocity of 3 m/s. If the tabletop is 20 meter above the ground, calculate how far the ball travels horizontally when it hits the floor.
An 80 kg spacewalking astronaut pushes off a 640 kg satellite, exerting the 100N force for the 0.50 s it takes him to straighten his arms.
A 913-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 30.0 m/s. What is the average force exerted on the car during this time
vertically polarized light with an intensity of 40 wm2 passes through a polarizer whose transmission axis is at an
Draw a free body diagram for the block, carefully labeling all forces acting on the block. What is the mass density of the liquid? What will each scale read if block A is pulled up our of the liquid.
air surrounds any object on all sides. even if an object is resting on a surface there is always air even if only a
A particle with a charge of 31?C moves with a speed of 72m/s in the positive x direction. The magnetic field in this region of space has a component of 0.38T in the positive y direction, what is the magnitude of the magnetic force on the particle
A 500-g block is released from rest and slides down a frictionless track that begins 2.40 m above the horizontal, Find the maximum distance the spring is compressed
An indestructible bullet, 2cm long, is fired straight through a board which is 10 cm thick. What is the total time the bullet is in contact with the board
A hollow spherical shell with mass 2.00 kg rolls without slipping down a 38.0 degree slope, find the friction force on it
The ripples in a certain groove 16.3 centimeters from the center of a33-rpm phonograph record have a wavelength of 1.26 millimeters. Find what will be the frequency of the sound emitted
A 0.359-kg mass is attached to a horizontal spring with k = 108 N/m. The mass slides across a frictionless surface Find the mechanical energy of the system
A spring with spring constant k is initially compressed a distance x from its equilibrium length. After returning to its equilibrium, the spring is then stretched a distance x from that position. What is the ratio of the work that needs to be done on..
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