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Prime Movers
a) Windmills, waterwheels, turbines, steam engines, and internal-combustion engines are typical prime movers.
b) In these prime movers the inputs vary; the outputs are usually rotating shafts capable of being used as inputs to other machines, such as electric generators, hydraulic pumps, or air compressors.
c) Machines that receive their input energy from a natural source, and transform it into mechanical energy are known as prime movers.
d) All machines have an input, an output, and a transforming or modifying and transmitting device.
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