# Question: A brass ring of diameter 10 00 cm at 20 0 C is heated

A brass ring of diameter 10.00 cm at 20.0°C is heated and slipped over an aluminum rod of diameter 10.01 cm at 20.0°C. Assuming the average coefficients of linear expansion are constant,
(a) To what temperature must this combination be cooled to separate them? Is this attainable?
(b) What If? What if the aluminum rod were 10.02 cm in diameter?

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