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Ahorizontal force of 350n is exerted on a 2.5 kg ball as it rotates uniformly in a horizontal circle of radius of 0.90m. calculate the speed of the ball.
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Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
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Ahorizontal force of 350n is exerted on a 2.5 kg ball as it rotates uniformly in a horizontal circle...
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