10-m-long steel rails of a railroad track (E = 200 GPa and α = 11.7 × 10⁻⁶ /°C) were laid at a temperature of 7.5°C. Determine the normal stress in the rails when the temperature reaches 48°C, assuming that the rails are 10 m long with 3-mm gaps between them. The normal stress in the rails is ______ MPa. (Don't use chatgpt,only handwritten. Stop giving random chatgpt solution)

10-m-long steel rails of a railroad track (E = 200 GPa and α = 11.7 × 10⁻⁶ /°C) were laid at a temperature of 7.5°C. Determine the normal stress in the rails when the temperature reaches 48°C, assuming that the rails are 10 m long with 3-mm gaps between them. The normal stress in the rails is ______ MPa. (Don't use chatgpt,only handwritten. Stop giving random chatgpt solution)

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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Required information 10-m-long steel rails of a railroad track (E = 200 GPa and a = 11.7 x 10-0PC) were laid at a temperature of 8.5°C. Determine the normal stress in the rails when the temperature reaches 48°C, assuming that the rails are welded to form a continuous track. The normal stress in the rails is MPa.
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only HANDWRITTEN answer needed ( NOT TYPED)
As shown in the figure, when the temperature was 24 ° C, a 0.5 mm gap was left. Determine the approximate value (° C) of the required temperature so that the normal stress in the aluminum bar is 75 MPa.
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PLEASE WRITE YOUR COMPLETE SOLUTION AND BOX THE FINAL ANSWER. THANK YOU. Determine the normal stress and change in length of the aluminum rod if the temperature was raised by 126°C. The 0.5-mm gap exists at 27°C.