The steel rails for a railroad track (E, = 29 x 106 psi, a, = 6.5 x 106/°F) were laid out at a temperature of 30°F. Determine the normal stress in the rails when the temperature reaches 125°F assuming that the rails (a) are welded to form a continuous track, (b) are 39 ft long with - in. gaps between them.

The steel rails for a railroad track (E, = 29 x 106 psi, a, = 6.5 x 106/°F) were laid out at a temperature of 30°F. Determine the normal stress in the rails when the temperature reaches 125°F assuming that the rails (a) are welded to form a continuous track, (b) are 39 ft long with - in. gaps between them.

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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