A 100 meter steel bridge has a temperature of 30 Celsius during a normal summer

Question

A 100 meter steel bridge has a temperature of 30 Celsius during a normal summer day. How much does it shrink during the winter if the temperature is at freezing ( 0 Celsius)? The expansion coefficient for steel is given in the equation below.  Answer in meters.

A 100 meter steel bridge has a temperature of 30 Celsius during a normal summer day. How much does it shrink during the winter if the temperature is at freezing ( 0 Celsius)? The expansion coefficient for steel is given in the equation below. Delta L = 1/100, 000 Lo Delta T

Explanation / Answer

change in temperature = 30-0 = 30 degree celcius change in length i.e, shinkage = 100*30/100000 = 0.03 m or 3*10^-2 m

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