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Question: A block of mass 3.00 kg

A block of mass 3.00 kg is placed against a horizontal spring of constant k = 875 N/m and pushed so the spring compresses by 0.070 0 m.
(a) What is the elastic potential energy of the block–spring system?
(b) If the block is now released and the surface is frictionless, calculate the block’s speed after leaving the spring.


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