How fast does it move after the bullet emerges
A 23-g bullet traveling 285m/s penetrates a 4.5kg block of wood and emerges cleanly at 230m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
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A cart loaded with bricks has a total mass of 20.4 kg and is pulled at constant speed by a rope. The rope is inclined at 31? above the horizontal and the cart moves 17.4 m on a horizontal ?oor. The coeffcient of kinetic friction between ground and
What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of sound to be 344 m/s.
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Which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
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