Three 1.0-c charged objects are equally spaced on a straight line. the separation of each object from its neighbor is 170m .part afind the force exerted on the center object if all charges are positive. express your answer to two significant figures and include the appropriate units. fq = part bfind the force exerted on the center object if all charges are negative. express your answer to two significant figures and include the appropriate units. fq = part cfind the force exerted on the center object if the rightmost charge is negative and the other two are positive. express your answer to two significant figures and include the appropriate units. fq =
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Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
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Hurry! how much heat is absorbed by a 72g iron skillet when its temperature rises from 11°c to 23°c?
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Three 1.0-c charged objects are equally spaced on a straight line. the separation of each object fro...
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