must answer in-details showing application of theory to carry rull ereuI 1. You
ID: 3280840 • Letter: M
Question
must answer in-details showing application of theory to carry rull ereuI 1. You have a copper collar and a steel shaft. At 20°'C, the collar has an inside diameter of 5.9800 cm and the steel shaft has diameter of 6.0000 cm. The copper collar was heated. When its inside diameter exceeded 6.0000 cm is was slipped on the shaft. The collar fitted tightly on the shaft after they cooled to room temperature. Now, several years later, you need to remove the collar from the shaft. To do this you heat them both until you can just slip the collar off the shaft. What temperature must the collar have so that the collar will just slip off the shaft? Hint: four decimal places. alu 17x10 pC and astel 11x10opcExplanation / Answer
Solve for
TandT= (20 +T)oC
Let temperature of both is increased by T
Then,
6.0000(1 + 11×10-6T) = 5.9800(1 + 17×10-6T)
T = 0.02/ (5.98*17*10^-6)-(6.00*11*10^-6)
= 561 C
Temperature of collar T= 581 0C
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