A metal bar at a temperature of 100 deg. F is placed in a room at a constant temperature of 0 deg. F. If after 20 minutes the temperature of the bar is 50 deg. F, find the time it will take the bar to reach a temperature of 32 deg. F. Select the correct response: 36.37 minutes None 39.6 minutes 32.56 minutes

A metal bar at a temperature of 100 deg. F is placed in a room at a constant temperature of 0 deg. F. If after 20 minutes the temperature of the bar is 50 deg. F, find the time it will take the bar to reach a temperature of 32 deg. F. Select the correct response: 36.37 minutes None 39.6 minutes 32.56 minutes

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.5P: To determine the thermal conductivity of a structural material, a large 15-cm-thick slab of the...

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