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A 0.3 kg object is suspended on a spring below. The object stretches the spring by...

A 0.3 kg object is suspended on a spring below. The object stretches the spring by 0.02 m downwards.

a. What's the spring constant?

b. How much elastic energy is stored by stretching the spring?

c. Then the object is pulled an additional distance of 1 cm downwards and released from rest. Find the frequency of oscillation.

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