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Question: please explain and show work...

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Please explain and show work

Homework: Section 3.3 Heating and cooling of buildings Save Score: 0.5 of 1 pt 4 of 5 (5 complete) Hw Score: 90%, 4.5 of 5 pts 3.3.10 Early Monday morning, the temperature in the lecture hall has fallen to 41 F, the same as the temperature outside At 7:00 A.M, the janitor turns on the furnace with the thermostat set at 68 F. The time constant for the building is 3 hr and hat for the building along with its heating system 2hr.Assuming that the outside temperature remains constant, what will be the temperature inside the lecture hall at 8:15 A.M.? When will the temperature inside the hall reach 67 F? At 8:15 A.M., the temperature inside the lecture hall will be aboutPF Question Help Round to the nearest tenth as needed.)
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