How many electrons must be removed from each of two 5.69-kg copper spheres to make the electric force of repulsion between them
equal in magnitude to the gravitational attraction between them?
1 answer:
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Answer
Given,
Energy absorbed,
Energy expels,
Temperature of cold reservoir, T = 27°C
a) Efficiency of engine
b) Work done by the engine
c) Power output
t = 0.296 s