A copper wire of length 3.0 m is observed to stretch by 2.1 mm when a weight

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A copper wire of length 3.0 m is observed to stretch by 2.1 mm when a weight of 120 N is hung from one end?
(a) What is the diameter of the wire and what is the tensile stress in the wire?
(b) If the tensile strength of copper is 4.0 × 108 N/m2, what is the maximum weight that may be hung from this wire?
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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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