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Final answer:The processing involves calculating the power output of a heat engine based on its thermal efficiency and heat input, and determining the power required by an air conditioner using its COP and the amount of heat to be removed.Explanation:The question pertains to calculating the power produced by a heat engine with a specified heat input and thermal efficiency, and determining the power drawn by an air conditioner based on its coefficient of performance and the cooling required for a given volume of air. Let's address each part respectively.Q4: Calculating Power Produced by a Heat EngineFor the heat engine with a heat input of 3 X 104 Btu/h and a thermal efficiency of 40 percent, the power output can be calculated using the formulaPower Output = Heat Input x Thermal Efficiency. Given that 1 Btu/h = 0.293071 Watts and 1 hp = 745.7 Watts, the power output in hp can be calculated and converted from Watts.Q5: Determining Power Drawn by an Air ConditionerTo find the power drawn by the air conditioner, first calculate the amount of heat that needs to be removed based on the temperature change, mass of the air, and the specific heat capacity. Then, use the coefficient of performance (COP) to determine the power required. The formulaPower = Heat Removed / (COP x Time)can be used, ensuring units are consistently applied....

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