Question: A horizontal block - spring system with the block on a frictionless surface has total mechanical energy E = 4 3 . 3 J and

A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E =43.3 J and a maximum displacement from equilibrium of 0.267 m.
(a) What is the spring constant?
N/m
(b) What is the kinetic energy of the system at the equilibrium point?

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