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Chapter 18, Problem 2RQ

If an engine at sea level produces 100 hp, how many horsepower would it develop at 6,000 feet of altitude?

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A casting weighing 300 lbs is to be lifted by means of an overhead crane. The casting is lifted 10 feet in 12 seconds. What is the horsepower developed?
If there are five different Carnot engines (C1, C2, C3, C4 and C5) with low temperature reservoirs are at 7 "C, 10 °C, 13 "C, 15 °C and 18 °C respectively and each engine has efficiency of 60%. It is desired to increase the efficiency of each engine to 75 %. By using the selections statements calculate that how many degree the temperature of the source of each Carnot engine be increased separately. Do a subplot of bar and stem Plot of the temperature of the source against each heat engine Cl, C2, C3, C4 and C5. [Hint: Efficiency of heat engine is , Use else if else as selection statement. And take all the inputs by using input command and take all the outputs by using fprintf command.]
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