A 045 kg mass vibrates according to the equation x 049 cos, Ask an Expert

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A 0.45 kg mass vibrates according to the equation x = 0.49 cos 8.45t, where x is in meters, and t is in seconds.

(a) Determine the amplitude.

(b) Determine the frequency.

(d) Determine the kinetic energy and potential energy when x = 0.35 m.

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