College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 9P
Human hair. According to one set of measurements, the tensile strength of hair is 196 MPa, which produces a maximum strain of 0.40 in the hair. The thickness of hair varies considerably, but let’s use a diameter of 50 μ m. (a) What is the magnitude of the force giving this tensile stress? (b) If the length of a strand of the hair is 12 cm at its breaking point, what was its unstressed length?
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11
6.82 x10-3
Incorrect
3.66 X10-4
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372.6
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m
m
N/m
Chapter 11 Solutions
College Physics (10th Edition)
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