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enot [183]
3 years ago
11

A professional cyclist rides a bicycle that is 92 percent efficient. For every 100 joules of energy he exerts as input work on t

he pedals, how many joules of output work are used to move the bicycle?
Physics
1 answer:
emmainna [20.7K]3 years ago
8 0
Efficiency =  Work Output / Work Input

92%  =  Work Output / 100

0.92 =   Work Output / 100

Work Output = 0.92 * 100

Work Output  = 92 joules.
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Here's the equation you use: Density = mass/volume

1) 5.2g/cm^3 = m/3.7cm^3

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You can check the answer by plugging it in

19.24g/3.7cm^3
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