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Kelsie Sawayn

Feb 20, 2025

A copper wire is 20m long on a winter day when the temperature is – 12 Degrees Celsius?

By how much does its length increase on a 26 Degrees Celsius} summer day?Express your answer using two significant figuresCan someone walk me through this ?Thanks!
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Hermina Ferry

Feb 20, 2025

This is an easy problem.Use the relation of thermal expansion..L=L0(1+ αΔT)By putting the given values you will easily get the answer.... Show More
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H
Hermina Ferry

Feb 20, 2025

Copper thermal expansion coefficient α = 16,8 x 10^-6 / °CLength change = α x original length x temperature changeLength change = 16,8 x 10^-6 x 20 x ( 26 - -12 )Length change = 16,8 x 10^-6 x 20 x 38Length change = 16,8 x 10^-6 x 20 x 38Length change = 12768 x 10^-6 = 0,012768 meters = 12,768 cm... Show More
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