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    efficiency of heat energy

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    1. The mass of an electron is 9.11x10^-31 kg. The mass of one (negative) coulomb of electron (in kilograms) is equal to?

    2. If a charge of 8.4 microcoloumbs is evenly distributed around a ring of radius 0.31m, the charge per unit length (in micro c/m) will be?

    3. An engine takes in 4.7 calories of heat and discharges 3.5 calories of heat. What is its efficiency?

    4. A certain otto cycle has a 7.0 compression ratio. if the working fluid has a "gamma" of 1.4 what is its efficiency?

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    https://brainmass.com/physics/energy/efficiency-of-heat-energy-168412

    Solution Summary

    It provides examples of calculating the efficiency of heat energy. It also shows how to find the uniform charge density. The solution is detailed and has a '5/5' rating.

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