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A coin is placed 31 cm from the center of a horizontal turntable, initially at rest. The turntable then begins to rotate. When the

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A coin is placed 31 cm from the center of a horizontal turntable, initially at rest. The turntable then begins to rotate. When the speed of the coin is 110 cm/s (rotating at a constant rate), the coin just begins to slip. The acceleration of gravity is 980 cm/s What is the coefficient of static friction be-

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