The steel bed of a suspension bridge is 200 m long at 20°C. If the
extremes of temperature to which it might be exposed are -30°C
to +40°C, how much will it contract and expand?
1
Expert's answer
2019-04-01T10:35:00-0400
The difference in temperatures is equal to ∆T=70°C=70 K.
We can calculate a substantial change of length as
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