A1 (1.0) m long rod of cross-section 1.0x10 4 m2 is stretched by 537 um. What is the tensile stress in the rodi in units of 108 N/m2? Young's modulus of the rod is 20x1010 N/m2. Keep three significant figures for the answer. Note if your answer is 21.5x10° N/m2, then you input 21.0 as your answer with three significant figures.

A1 (1.0) m long rod of cross-section 1.0x10 4 m2 is stretched by 537 um. What is the tensile stress in the rodi in units of 108 N/m2? Young's modulus of the rod is 20x1010 N/m2. Keep three significant figures for the answer. Note if your answer is 21.5x10° N/m2, then you input 21.0 as your answer with three significant figures.

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 54PQ

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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

A1 (1.0) m long rod of cross-section 1.0x104 m2 is stretched by 537 um. What is the tensile stress in the rod
in units of 108 N/m2? Young's modulus of the rod is 20x1010 N/m2. Keep three significant figures for the
answer. Note if your answer is 21.5x10° N/m2, then you input 21.0 as your answer with three significant
figures.

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