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Early Monday morning, the temperature in the lecture hall has fallen to 38°F, the same as the temperature outside. At 7:00 A.M., the janitor turns on the furnace with the thermostat set at 70°F. The time constant for the 11 1 building is =3 hr and that for the building along with its heating system is K₁=3 hr. Assuming that the outside temperature remains constant, what will be the temperature inside the lecture hall at 8:30 A.M.? When will the temperature inside the hall reach 68°F? At 8:30 A.M., the temperature inside the lecture hall will be about °F.

Early Monday morning, the temperature in the lecture hall has fallen to 38°F, the same as the temperature outside. At 7:00 A.M., the janitor turns on the furnace with the thermostat set at 70°F. The time constant for the 11 1 building is =3 hr and that for the building along with its heating system is K₁=3 hr. Assuming that the outside temperature remains constant, what will be the temperature inside the lecture hall at 8:30 A.M.? When will the temperature inside the hall reach 68°F? At 8:30 A.M., the temperature inside the lecture hall will be about °F.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Early Monday morning, the temperature in the lecture hall has fallen to 38°F, the same as the temperature outside. At 7:00 A.M., the janitor turns on the furnace with the thermostat set at 70°F. The time constant for the 1 1 1 building is =3 hr and that for the building along with its heating system is K₁=3 hr. Assuming that the outside temperature remains constant, what will be the temperature inside the lecture hall at 8:30 A.M.? When will the temperature inside the hall reach 68°F? At 8:30 A.M., the temperature inside the lecture hall will be about°F. (Round to the nearest tenth as needed.)
Transcribed Image Text:Early Monday morning, the temperature in the lecture hall has fallen to 38°F, the same as the temperature outside. At 7:00 A.M., the janitor turns on the furnace with the thermostat set at 70°F. The time constant for the 1 1 1 building is =3 hr and that for the building along with its heating system is K₁=3 hr. Assuming that the outside temperature remains constant, what will be the temperature inside the lecture hall at 8:30 A.M.? When will the temperature inside the hall reach 68°F? At 8:30 A.M., the temperature inside the lecture hall will be about°F. (Round to the nearest tenth as needed.)
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