Answer
Please see the work below.
Work Step by Step
We know that
$\Delta L=L\alpha \Delta T$
We plug in the known values to obtain:
$\Delta L=(20)(17\times 10^{-6})(26-(-12))$
$\Delta L=0.013m$
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 17 - Exercises and Problems - Page 313: 30
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