Answered: A steel bar 6 cm long is welded end to…

A steel bar 6 cm long is welded end to end to a copper bar 9 cm long. Ea at 66 °C, and the free end of the cooper bar is at 5 °C. Find the total rate decimal places)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 21PQ

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Question

A steel bar 6 cm long is welded end to end to a copper bar 9 cm long. Each bar has a square cross section 2.00 cm on a side. The free end of the steel with a temprature
at 66 °C, and the free end of the cooper bar is at 5 °C. Find the total rate of heat flow in (W)? (ksteel =50.2 W/K.m and kcopper =385 W/K.m ) (Answer in one
decimal places)
Material having
thermal conductivity k
Area A
Steel
Сорper
T,>T

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