Hooke's Law for a Wire A wire of length 10 and cross-sectional Area A supports a hanging weight W.
(a) Show that if the wire obeys Equation (11.7), it behaves like a spring of force constant AY/lo, where Y is Young's modulus for the material of which the wire is made.
(b) What would the force constant be for a 75.0-cm length of 16-gauge (diameter = 1.291 mm) copper wire? See Table 11.1.
(c) What would W have to be to stretch the wire in part (b) by 1.25 mm?