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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A steel beam bring used in the construction of a skyscraper has a length of 35.000 m when delivered on a cold day at a temperature of 15.000°F. What is the length of the beam when it is being installed later on a warm day when the temperature is 90.00°F?

To determine
The new length of the beam.

Explanation

Given Info: Length of the steel beam ( L0 ) is 35.000 m. Temperature changes from T1=15.000οF to T2=90.000οF . The co-efficient of linear expansion of steel is α=11×106/οC

Formula to calculate the length is,

L=L0(1+α[T2T1])

Substitute 35.000 m for L0 , 11×106/οC for α , 90.000οF for T2 and 15.000οF for T1 in the above equation to get L

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