Question: A force F is applied to a long wire of length L and cross-sectional area A. Show that if the wire is considered to be

A force F is applied to a long wire of length L and cross-sectional area A. Show that if the wire is considered to be a spring, the force constant k is given by k = AY/L and the energy stored in the wire is U = ½ F ∆L, where Y is Young’s modulus and ∆L is the amount the wire has stretched.

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