University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 17 - Temperature and Heat - Problems - Exercises - Page 575: 17.11

Answer

$+0.39\mathrm{m}$

Work Step by Step

Apply 17-6, $\Delta L=L_{0}\alpha\Delta T$ with $\alpha_{\mathrm{s}\mathrm{t}\mathrm{e}\mathrm{e}\mathrm{l}} =1.2\times 10^{-5}(\mathrm{C}^{\mathrm{o}})^{-1} \qquad $(from table 17-1), and given $\Delta T=18.0^{\mathrm{o}}\mathrm{C}-(-5.0^{\mathrm{o}}\mathrm{C})=23.0{}^{\mathrm{o}}\mathrm{C}$ $\Delta L=(1.2\times 10^{-5}(\mathrm{C}^{\mathrm{o}})^{-1})(1410\mathrm{m})(23.0{}^{\mathrm{o}}\mathrm{C})=+0.39\mathrm{m}$
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