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Physics, 02.12.2020 15:30 babygirl6571
A machine
of efficiency of 70% is used to raise
a body of
mass 80 kg through
a vertical distance of 3m in
40 seconds. Calculate the power input. (Take g = 10 m/s²)
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Answers: 2
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You know the right answer?
A machine
of efficiency of 70% is used to raise
a body of
mass 80 kg through
a verti...
a body of
mass 80 kg through
a verti...
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