A 23.0-m-long bar of steel expands due to a temperature increase. A 12.0-m-long bar of copper also gets longer due to the same temperature rise. The two bars were originally separated by a gap of 1.7 cm. Assume the steel and copper bars are fixed on the ends, as shown in the following figure. aCu 16.5 x 10-6K-1 aSteel 13 x 10-6K-1 Initial: Final: Submit H Steel bar Submit 1) Calculate the change in temperature if the gap is exactly "closed" by the expanding bars. (Express your answer to two significant figures.) K gap Copper bar 2) Calculate the distances that the steel stretches. (Express your answer to two significant figures.) mm 3) Calculate the distances that the copper stretches. (Express your answer to two significant figures.) + +

A 23.0-m-long bar of steel expands due to a temperature increase. A 12.0-m-long bar of copper also gets longer due to the same temperature rise. The two bars were originally separated by a gap of 1.7 cm. Assume the steel and copper bars are fixed on the ends, as shown in the following figure. aCu 16.5 x 10-6K-1 aSteel 13 x 10-6K-1 Initial: Final: Submit H Steel bar Submit 1) Calculate the change in temperature if the gap is exactly "closed" by the expanding bars. (Express your answer to two significant figures.) K gap Copper bar 2) Calculate the distances that the steel stretches. (Express your answer to two significant figures.) mm 3) Calculate the distances that the copper stretches. (Express your answer to two significant figures.) + +

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter11: Energy In Thermal Processes

Section11.5: Energy Transfer

Problem 11.5QQ: Stars A and B have the same temperature, but star A has twice the radius of star B. (a) What is the...

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