A metal bar at a temperature of 200F is placed in a room at a constant temperature of 20F. (a) If after 15 min the temperature of the bar is 50F, find the temperature of the bar at any time t. A. T= 180 e^-0.1194t + 20 B. T= 180 e-0.1194t- 20 C. 180 e0.1194t + 20 D. None of the above How long will it take for the bar to reach a temperature of 75F. A. 9.93 min B. 9.93 secs

A metal bar at a temperature of 200F is placed in a room at a constant temperature of 20F. (a) If after 15 min the temperature of the bar is 50F, find the temperature of the bar at any time t. A. T= 180 e^-0.1194t + 20 B. T= 180 e-0.1194t- 20 C. 180 e0.1194t + 20 D. None of the above How long will it take for the bar to reach a temperature of 75F. A. 9.93 min B. 9.93 secs

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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