Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115.°F. Six months later the temperature has dropped to -2.°F. How much space now exists between each rail?
[ linear expansion coef. for steel is 12. × 10^-6C°^-1]

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The Answer of Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115.°F. Six months later the temperature has dropped to -2.°F. How much space now exists between each rail? [ linear expansion coef. for steel is 12. × 10^-6C°^-1]

Ten Meter Long Steel Railroad Rails Are Laid End to End