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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 wire is 25.0 m long at 2.00°C and is 1.19 cm longer at 30.0°C. Find the wire’s coefficient of linear expansion.

To determine
The co-efficient of linear expansion ( α ).

Explanation

Given Info: Length of wire ( L0 ) is 25.0 m The change in length ( ΔL ) is 1.19 cm. The temperature changes from T1=2.00οC to T2=30.0οC .

Formula to calculate the co-efficient of linear expansion is,

α=ΔLL0(T2T1)

Substitute 25.0 m for L0 , 1.19 cm for ΔL , 2.00οC for T1 and 30.0οC for T2 in the above equation to get α .

α=1

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