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Steel expands 1 part in 100 000 for each 1°C increase in temperature. If the 1.5km main span of steel suspension bridge had no expansion joints, how much longer would it be for a temperature increase of 20°C?

  • science - ,

    Increase = a*(Tf-To)Lo =
    10^-5*20*1.5 = 3.0*10^-4km.

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