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24-05-2023
Physics

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A U.S. penny has a diameter of 1.9000cm at 20.0 C. The coin is made of a metal alloy (mostly zinc) for which the coefficient of linear expansion is 2.6x10^-5 K^-1.
(A)What would its diameter be on a hot day in Death Valley ( 48C)?
(B)On a cold night in the mountains of Greenland (-55C)?

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