A carnot engine performs work at the rate of 480 kw as, Ask an Expert

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Q. A Carnot engine performs work at the rate of 480 kW while using 640 kcal of heat per second. If the temperature of the heat source is 540°C, at what temperature is the waste heat exhausted?

Q. A sound source at a frequency of 500 Hz has an acoustic power of 1/10 of a watt. How do you find the intensity 1/2 a m from the source, the pressure amplitude, and the magnitude of the specific acoustic impedance assuming the amplitude of the particle velocity is 0.0127 m/s.

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