Question

A 0.63kg{\rm kg} mass vibrates according to the equation x=0.30cos7.00tx = 0.30 \cos 7.00 t, where xx is in meters and tt is in seconds.
Determine the amplitude.
The amplitude is given in the equation = .30
A 444g mass vibrates according to the equation x = 0.348 sin (5.82 t) where x is in meters and t is in seconds. Determine the total energy. Determine the kinetic energy when x is 14.0cm. Determine the potential energy when x is 14.0cm.

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