Answer to Question #282754 in Physics for Kimgcash

Question #282754

A steel bridge is 625m long when the temperature is 0◦C. If the bridge did not have any expansion joints, how much longer would the bridge be on a hot summer day when the temperature is 35◦C? (Use the linear co¨efficient of expansion for iron.)

1
Expert's answer
2021-12-27T08:01:36-0500

The final length of the bridge will be


ΔL=L0αΔT=650(12106)35=0.26 m.\Delta L=L_0\alpha \Delta T=650(12·10^{-6})·35=0.26 \text{ m}.


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