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An elastic rod with a cross-sectional area A = 3 mm² is stretched from an initial length of 1.0 m to a final length of 1.1 m at a constant temperature of 15 °C. Calculate the heat exchanged between the elastic rod and its surroundings if it is made of a material with an isothermal Youngs modulus ET = 50 GPa and a linear expansivity at constant tension af = 5 x 10-6K-1.

An elastic rod with a cross-sectional area A = 3 mm² is stretched from an initial length of 1.0 m to a final length of 1.1 m at a constant temperature of 15 °C. Calculate the heat exchanged between the elastic rod and its surroundings if it is made of a material with an isothermal Youngs modulus ET = 50 GPa and a linear expansivity at constant tension af = 5 x 10-6K-1.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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An elastic rod with a cross-sectional area A = 3 mm² is stretched from an initial length of 1.0 m to a final length of 1.1 m at a constant temperature of 15 °C. Calculate the heat exchanged between the elastic rod and its surroundings if it is made of a material with an isothermal Youngs modulus ET = 50 GPa and a linear expansivity at constant tension af = 5 x 10-6 K-¹. Select one: O a. 21.61125 J b. -21.61125 J O c. -1.125 J O d. 1.125 J
Transcribed Image Text:An elastic rod with a cross-sectional area A = 3 mm² is stretched from an initial length of 1.0 m to a final length of 1.1 m at a constant temperature of 15 °C. Calculate the heat exchanged between the elastic rod and its surroundings if it is made of a material with an isothermal Youngs modulus ET = 50 GPa and a linear expansivity at constant tension af = 5 x 10-6 K-¹. Select one: O a. 21.61125 J b. -21.61125 J O c. -1.125 J O d. 1.125 J
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