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Lo = 5 cm in a copper bar tensile specimen. After loading, Ls = 5.7 cm. How much is the unit expansion? * 20% 0.14%
Lo = 5 cm in a copper bar tensile specimen. After loading, Ls = 5.7 cm. How much is the unit expansion?
*
20%
0.14%
1.4%
14%
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