21. A steel tube is restrained between two rigid walls 80 cm apart. At a temperature of 34°C, the steel tube is stress free. What will be the stress, in MPa, in the tube when the temperature is 28°C? The steel tube has an outside diameter of 25 mm and a thickness of 1.5 mm. Use a = 11.7 x 10-6 m/m-°C and E = 200 GPa. a. 8.71 b. 11.9 C. d. 12.5 14.04 22. Shown is a chain carrying a load P of 10 kN. If the allowable stress in the chain is 225 MPa, what is the minimum required diameter d of the chain.

21. A steel tube is restrained between two rigid walls 80 cm apart. At a temperature of 34°C, the steel tube is stress free. What will be the stress, in MPa, in the tube when the temperature is 28°C? The steel tube has an outside diameter of 25 mm and a thickness of 1.5 mm. Use a = 11.7 x 10-6 m/m-°C and E = 200 GPa. a. 8.71 b. 11.9 C. d. 12.5 14.04 22. Shown is a chain carrying a load P of 10 kN. If the allowable stress in the chain is 225 MPa, what is the minimum required diameter d of the chain.

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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