On a mild Saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23°C. At noon the furnace is turned off, and the people go home. The temperature outside is a constant 14°C for the rest of the afternoon. If the time constant for the building is 3 hr, when will the temperature inside the building reach 19°C? If some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 19°C? If the time constant for the building is 3 hr, the temperature inside the building will reach 19°C about hr afternoon. (Round to the nearest tenth as needed.) If the time constant for the building drops to 2 hr, the temperature inside the building will reach 19°C about hr afternoon. (Round to the nearest tenth as needed.)

On a mild Saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23°C. At noon the furnace is turned off, and the people go home. The temperature outside is a constant 14°C for the rest of the afternoon. If the time constant for the building is 3 hr, when will the temperature inside the building reach 19°C? If some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 19°C? If the time constant for the building is 3 hr, the temperature inside the building will reach 19°C about hr afternoon. (Round to the nearest tenth as needed.) If the time constant for the building drops to 2 hr, the temperature inside the building will reach 19°C about hr afternoon. (Round to the nearest tenth as needed.)

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.55P: 2.55 A long, 1-cm-diameter electric copper cable is embedded in the center of a 25-cm-square...

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