A carnot engine takes in heat from a reservoir at 470degc, Ask an Expert

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Q. A Carnot engine takes in heat from a reservoir at 470°C and releases heat to a lower-temperature reservoir at 200°C. What is its efficiency?

Q. An ion accelerated through 240.00 V has its potential energy decreased by potential energy of 7.68 10-17 J. Calculate the (magnitude of the) charge on the ion.

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