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April 18, 2015

Homework Help: physical

Posted by itufizik on Monday, July 23, 2012 at 1:08pm.

Steel rails for a train track are laid in a region subject to extremes of temperature. The distance from one juncture to the next is 4.41 m, and the cross-sectional area of the rails is 60 cm2. If the rails touch each other without buckling at the maximum temperature, 60.0 C, how much space will there be between the rails at -12.0 C?

(The linear expansion coefficient of steel is 1.310-5 / C)

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