A 0.4974 mile long concrete bridge has thermal expansion coefficient of 0.00158 m/K. The summer heat...
A 0.4974 mile long concrete bridge has thermal expansion coefficient of 0.00158 m/K. The summer heat can get up to 48 degrees C, and the winter down to 4 degrees C. What is the overall change in length over the course of a year, in feet?
Answer: is 182.58 ft
Homework Answers
Length given is 0.4974 mile or 2626.272ft
We know that change in length per unit length is
(thermal expansion coefficient)*(change in temperature)
0.00158(48-4)
=0.06952
So change in length will be
length*(0.06952)
2626.272*(0.06952)
=182.58ft
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