A metal rod (metal A) that is 30.0 cm long expands by 0.0750cm when its temperature is raised from 00 C to 1000 A rod of a different material (metal B) and of the same length by 0.040cm for same raise in temperature. A third rod, also 30.0cm long, is made up of pieces of each of the above metals paced end-to-end and expands 0.0550cm between 00 C and 1000 C. Find the length of each portion of the composite bars. 1. A metal rod (metal A) that is 30.0 cm long expands by 0.0750cm when its temperature is raisedfrom 0°C to 100° C. A rod of a different material (metal B) and of the same length by 0.040cm forsame raise in temperature. A third rod, also 30.0cm long, is made up of pieces of each of theabove metals paced end-to-end and expands 0.0550cm between 0°C and 100° C. Find the lengthof each portion of the composite bars.

Calculate the coefficient of linear expansion in metal A. ∆LA=LAαA∆T0.0750=30αA100-0αA=25×10-6 /°C

Answered: A metal rod (metal A) that is 30.0 cm…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter16: Temperature And The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 12P

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A metal rod (metal A) that is 30.0 cm long expands by 0.0750cm when its temperature is raised from 0⁰C to 100⁰ A rod of a different material (metal B) and of the same length by 0.040cm for same raise in temperature. A third rod, also 30.0cm long, is made up of pieces of each of the above metals paced end-to-end and expands 0.0550cm between 0⁰C and 100⁰C. Find the length of each portion of the composite bars.

1. A metal rod (metal A) that is 30.0 cm long expands by 0.0750cm when its temperature is raised
from 0°C to 100° C. A rod of a different material (metal B) and of the same length by 0.040cm for
same raise in temperature. A third rod, also 30.0cm long, is made up of pieces of each of the
above metals paced end-to-end and expands 0.0550cm between 0°C and 100° C. Find the length
of each portion of the composite bars.

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