On a mild Saturday morning while people are working inside the fumace keeps the temperature inside the building at 20°C. At noon the furnace is turned off, and the people go home. The temperature outside is a constant 12°C for the rest of the afternoon. If the time constant for the building is 3hr, when will the temperature inside the building reach 14°C? If some windows are left open and the time constant drops to 2 hr when will the temperature inside reach 14°C? If the time constant for the building is 3hr, the temperature inside the building will reach 14°C about he 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 14°C about rather noon (Round to the nearest tenth as needed)