29.The time dependent temperature at a point of a long bar is given byr8/VēT(t) =100°21 -72dTWhen t = 64, T = 15.73°. Use differentials to estimate how long it will be untilT = 17°.

Tt=100°-200π∫08te-ζ2dζdTtdt=200πe-64t×8×-121t3/2dTtdt=-800πe-64tt32∫15.7317dTt=-800π∫64te-64tt32dt17…

Answered: 29. The time dependent temperature at a…

College Physics

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ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

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Chapter14: Heat And Heat Transfer Methods

Section: Chapter Questions

Problem 74PE: Integrated Concepts (a) What is the temperature increase of water failing 55.0 m over Niagara Falls?...

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29. The time dependent temperature at a point of a long bar is given by r8/Vē T(t) = 100° 2 1 - 72 dT When t = 64, T = 15.73°. Use differentials to estimate how long it will be until T = 17°.