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The coefficient of linear expansion of an alloy is 1.20 x 10^-5 (^oC)^-1. At 20.0^o C a tube made of this alloy has a length of 18.0200 m. The tube is cooled to -25.0^o C. Calculate the change in length (ΔL) of the tube. Remember that a negative change in length means that the length decreases, and a positive change in length means that the length increases.

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