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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 1.3·10-5 / °C)

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