As he rides the train to work on a - 4ºC winter day, Mr. Trump notices that he can hear the click of the train going over the spaces between the rails. Six months later, on a 30ºC summer day, the rails are pushed together and he hears no clicks. If the rails are 5 meters long when the temperature is 30ºC, how large a gap is left between the steel rails (α steel = 1.2 x 10 - 5 ºC -1 ) on the cold winter day?

As he rides the train to work on a - 4ºC winter day, Mr. Trump notices that he can hear the click of the train going over the spaces between the rails. Six months later, on a 30ºC summer day, the rails are pushed together and he hears no clicks. If the rails are 5 meters long when the temperature is 30ºC, how large a gap is left between the steel rails (α steel = 1.2 x 10 - 5 ºC -1 ) on the cold winter day?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.26P

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