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An object is moving in the z direction as z(t) = (13.2 cm) cos[(3.14 rad/s)t -...

An object is moving in the z direction as z(t) = (13.2 cm) cos[(3.14 rad/s)t - 1.57]. The object weighs 21.2 N on Earth.

What is the total kinetic plus potential energy of the object?

The mass is under the influence of a spring. What is its spring constant?

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