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Aluminum rivets used in airplane construction are made slightly larger than the rivet holes and cooled...

Aluminum rivets used in airplane construction are made slightly larger than the rivet holes and cooled by "dry ice" (solid CO2) before being driven.

If the diameter of a hole is 4.470 mm , what should be the diameter of a rivet at 23.0 ∘C, if its diameter is to equal that of the hole when the rivet is cooled to -76.5 ∘C, the temperature of dry ice? Assume that the expansion coefficient of aluminum is 2.4×10−5(∘C)−1 and remains constant.

Express answer in mm

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Answer #1

0.010694 +449 4-4. go6mm

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