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A force of 14.0 N directed down a ramp inclined at 20 pushes on a 19.5 kg box; the box is at the point

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A force of 14.0 N directed down a ramp inclined at 20 pushes on a 19.5 kg box; the box is at the point where it is just about to move. Determine the coefficient of static friction between the box and the ramp. Give your answer in 3 significant figures. Your Answer:

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