The New River Gorge bridge in West Virginia is a 518-m-long steel arch. How much

Physics
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The New River Gorge bridge in West Virginia is a 518-m-long steel arch. How much will its length change between temperature extremes 

−17°C
 and 
31°C?
 
 cm
Jun 19th, 2015

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Jun 19th, 2015

dT = 31C -( -17 C) = 48 C 

Coeffiecient of Thermal Expansion Steel=C ~ 12 x10^-6 K 
Ref: Wiki: http://en.wikipedia.org/wiki/Coefficient...

Expansion = C dT L 
E = (12 x10^-6 /K) (48 C) (518m) 
E = .298 m = 30 cm

Jun 19th, 2015

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Jun 19th, 2015
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