Physics, 26.09.2019 21:20 shartman22
Aroom contains 75 kg of air at 100 kpa and 15°c. the room has a 250-w refrigerator (the refrigerator consumes 250 w of electricity when running), a 120-w tv, a 1.8-kw electric resistance heater, and a 50-w fan. during a cold winter day, it is observed that the refrigerator, the tv, the fan, and the electric resistance heater are running continuously but the air temperature in the room remains constant. the rate of heat loss from the room that day is kj/h.
Answers: 3
Physics, 22.06.2019 06:00
What will a positive and a negative charge do if they are separated from each other?
Answers: 3
Physics, 22.06.2019 10:30
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
Aroom contains 75 kg of air at 100 kpa and 15°c. the room has a 250-w refrigerator (the refrigerator...
Mathematics, 29.10.2019 04:31
Computers and Technology, 29.10.2019 04:31
Physics, 29.10.2019 04:31
Mathematics, 29.10.2019 04:31
Mathematics, 29.10.2019 04:31
Mathematics, 29.10.2019 04:31
Mathematics, 29.10.2019 04:31
Health, 29.10.2019 04:31
Biology, 29.10.2019 04:31
History, 29.10.2019 04:31