Question: A brass lid screws tightly onto a glass jar at 20oC. To help open the jar, it can be placed into a bath of hot

A brass lid screws tightly onto a glass jar at 20oC. To help open the jar, it can be placed into a bath of hot water. After this treatment, the temperatures of the lid and the jar are both 60oC. The inside diameter of the lid is 8.0cm at 20oC. Find the size of the gap (difference in radius) that develops by this procedure.

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