7. You slide a 0.12-kg coffee mug 0.15 m across a exert is horizontal and of magnitude 0.10 N. The coefficient of kinetic
friction between the mug and the table is 0.05. How much work is done
on the mug?

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A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

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