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October 16th, 2017, 02:19 AM   #1
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Thermal Expansion

1. A thin brass sheet at 15 ˙C has the 20.023 Sq.cm. surface area while thin steel at 20˙C of 20 sq.cm. At what temperature the two sheets have the same area.
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October 16th, 2017, 03:48 AM   #2
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The "area expansion" part of the Wikipedia page should be what you need; you just need to look up the thermal expansion coefficient for brass and steel to use the equations there.

https://en.wikipedia.org/wiki/Thermal_expansion
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