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26 July, 09:44

A bridge is made with segments of concrete 50 m long. If the linear expansion coefficient is 12  10-6 (°C) - 1, how much spacing (in cm) is needed to allow for expansion during an extreme temperature change of 150°F?

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  1. 26 July, 10:11
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    The change in temperature is simply 50 / (9/5) = 27.777. We just throw out the 32 from the formula
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