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Question: 

By how much is the column in Problem 41 shortened if it is 8.6 m high?

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 

$3.0 \times 10^{-5} \textrm{ m}$

Giancoli 7th Edition, Chapter 9, Problem 42

(0:37)

Chapter 9, Problem 42 is solved.

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Transcript for this Giancoli solution

This is Giancoli Answers with Mr. Dychko. Strain is the change in length of something that's been squished divided by its original length and we can multiply both sides by l naught for original length and you get that the change in length is strain times original length. And so from the previous problem, we found that the strain in this marble column is 3.5 times 10 to the minus 6 so we multiply that by 8.6 meters to get 3.0 times 10 to the minus 5 meters which is about 30 micrometers.