Question: 4) A copper penny has a small circular hole in its center, and, as the penny is heated, the radius of this hole changes.

4) A copper penny has a small circular hole in its center,

4) A copper penny has a small circular hole in its center, and, as the penny is heated, the radius of this hole changes. At a temperature of 50C, the rad- ius of the hole is 4 mm. If the penny is heated to a temperature of 500C, what will happen to the radius of the hole? a) It will grow by 3 10-5 m. b) It will shrink by 3 x 10-5 m. c) It will grow by 9 10-5 m. d) It will shrink by 9 x 10-5 m.

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