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A steel section of the Alaskan pipeline had a length of 59.8 m and a temperature of 20.9 °C when it was installed. What is its change in length when the temperature drops to a frigid -38.6 °C?

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The increase in the length of the solid is, (59.8 (12x10-38.6-20.9) -0.0426972 m ー-0.043 m

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