Answered: A solid copper cube has an edge length…

A solid copper cube has an edge length of 81.9 cm. How much stress must be applied to the cube to reduce the edge length to 81 cm? The bulk modulus of copper is 1.4 x 1011 N/m2.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 51PQ

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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

A solid copper cube has an edge length of 81.9 cm. How much stress must be applied to the cube to reduce the edge length to 81 cm? The bulk modulus of copper is 1.4 x 10¹¹ N/m².

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