Ball is thrown horizontally from the top of a building
A ball is thrown horizontally from the top of a building that is 15.67 m high with a speed of 23.47 m/s. Neglecting air resistance, at what angle with respect to the horizontal will the ball strike the ground?
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An air-standard Otto cycle has a compression ratio of 8 and the temperature and pressure at the beginning of the compression process are 5208R and 14.2 lbf/in.2, respectively. Determine the maximum pressure, in lbf/in.2.
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An inventor claims to have developed a device that takes an air stream at 20°C, 274 kPa, and produces two separate streams, one at 60°C, 270 kPa.
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The loading on the piston is such that the PV product is a constant. Assuming the room temperature is 20°C, show that this process does not violate the second law.
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The 20°C surroundings experience an entropy increase of 0.008 kW/K. Determine (a) the rate of heat loss from the compressor, (b) the exit temperature of the refrigerant, and (c) the rate of entropy generation.
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