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?
This question was answered on: Jul 11, 2017
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