1. A steel wire of length 4.7 m and cross section 3.0 x 10 m2 stretches by the same amount as a copper wire of length 3-5 m and cross section 4-0 x 10-5 m2 under a given load. What is the ratio of the Young's modulus of steel to that of copper ?

1. A steel wire of length 4.7 m and cross section 3.0 x 10 m2 stretches by the same amount as a copper wire of length 3-5 m and cross section 4-0 x 10-5 m2 under a given load. What is the ratio of the Young's modulus of steel to that of copper ?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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

1. A steel wire of length 4-7 m and cross section 3.0 x 10- m2 stretches by the same amount as a copper
wire of length 3-5 m and cross section 4-0 x 10-5 m? under a given load. What is the ratio of the
Young's modulus of steel to that of copper ?

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