A steam engine only converts 20 percent of its input energy into useful work?

A heat engine is a type of engine, (like the motor in a car) that produces ... Heat engines do just the opposite; they take the energy from being warm ... using a flame to heat water into steam, then using the steam to turn a turbine. ... is the percentage of energy input that the engine can convert to useful work.

Explanation:

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zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.

hurricanes form in warm water