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You hang a floodlamp from the end of a vertical steel

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 87P Chapter 11

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 87P

You hang a floodlamp from the end of a vertical steel wire. The floodlamp stretches the wire 0.18 mm and the stress is proportional to the strain. How much would it have stretched (a) if the wire were twice as long? (b) if the wire had the same length but twice the diameter. (c) for a copper wire of the orIginal length and diameter?

Step-by-Step Solution:

Solution 87P Introduction We have to calculate the stretching of the steel wire if the diameter is doubled or length is doubled. Also we have to calculate the stretching for the copper wire if the length and diameter is same. Step 1 The young’s modulus of the wire is given by So the stretching is given by ………..(1) So from the equation we can see that the stretching is directly proportional to the length of the wire. Hence if the length is doubled then the stretching will also be doubled. Hence the stretching will be

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Chapter 11, Problem 87P is Solved
Step 3 of 3

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

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You hang a floodlamp from the end of a vertical steel