An electric motor with a 1200 hp output drives a machine with an efficiency of 60%. What is the energy output of the machine per
1 answer:
Answer:
536,904 J/s
Explanation:
The energy output from motor is the input energy in the machine.
We know that efficiency is percentage energy ouput to energy input, and expressed as
Where n and E represent efficiency and energy respectively, subscripts o and i represent output and input respectively. Since for the machine we have the input energy then the output will be the product of efficiency and input energy
Energy output=0.6*1200 hp=720 hp
Converting hp to J/s we multiply by 745.7
Energy is 720*745.7=536,904 J/s
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Answer:
Explanation:
Mass of a proton,
Mass of an electron,
The distance between the electron and the proton is,
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Where G is the universal Gravitational constant
So, the force between the electron and proton is .