An enclosure is initially at the same temperature as the outside, which is 20°C. In it there are two 50 W lamps each, a 100 W TV, a 200 W refrigerator, which works 2/3 of the time, and a 500 W iron. Assuming that no heat is transferred through the walls, calculate the rate of increase of the energy content in the room, when all these appliances are turned on?
An enclosure is initially at the same temperature as the outside, which is 20°C. In it there are two 50 W lamps each, a 100 W TV, a 200 W refrigerator, which works 2/3 of the time, and a 500 W iron. Assuming that no heat is transferred through the walls, calculate the rate of increase of the energy content in the room, when all these appliances are turned on?
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An enclosure is initially at the same temperature as the outside, which is 20°C. In it there are two 50 W lamps each, a 100 W TV, a 200 W refrigerator, which works 2/3 of the time, and a 500 W iron. Assuming that no heat is transferred through the walls, calculate the rate of increase of the energy content in the room, when all these appliances are turned on?
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