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Aluminum wing is 30m long at 20*c

At what temperature would the wing be .05m shorter?

The coefficient for linear expansion of aluminum is (16 x 10^-6/c)

I have no idea how to do this. I don't want an answer. Just an equation or a hint on what to do. Thank you very much.

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# Homework Help: Need some direction please. Thermodynamics.

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