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An air-conditioning system is used to maintain a house at 70f when the temperature outside is 100 f the house is gaining heat through the walls and windows at a

rate of 800 Btu/min, and the heat generation rate within the house from people, lights, and appliances amounts to 100 Btu/min. Determine the minimum power input required for this air-conditioning system. Answer: 1.20 hp

Fig: 1