College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

Exercise 89

An aluminum rod is measured with a steel tape at 20°C, and the length of the rod is found to be 75 cm. What length will the tape indicate when both the rod and the tape are at (a) 10°C (b) 50°C [ Hint : Both the rod and tape will either expand or shrink as temperature changes. Keep as many significant figures as needed to express the answer.]