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The mechanical efficiency of this machine is 30 percent.

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Q: What is the mechanical efficiency of a machine whose work input is 100j and work output is 30j?
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Related questions

The mechanical what of a machine compares the input force with the output force?

Mechanical efficiency


What is the term for the comparison of input and output work of a machine?

Sounds like you are asking about "mechanical advantage"...


What does the output force divided by the input force equal?

Efficiency of a machine or mechanical advantage


What is a a comparison of a machines work output with the works input that is mechanical?

Output power divided by input power, for a machine, is called the machine's efficiency. It need not be mechanical energy.


What is a comparison of a machine's work input and work output force?

Mechanical efficiency


How do you calculate the mechanical efficiency of a machine?

Work output divided by Work input Times 100


Mechanical advantage of a compound machine?

MA = Revolutions of input shaft / Revolutions of output shaft. (Input torque * MA) * efficiency = Output torque Note 100% efficiency = 1.0


The ratio of output force to input force for a simple machine is called its advantage?

The answer is mechanical advantage, not efficiency!


Explain why the amount of work that a machine does is less than the amount put into the machine?

Output work is always less than input work.


Does a machine with an efficiency of 1.2 requires a smaller effort force than a machine that has an efficiency of 2.2?

Efficiency is a measure of power losses. A machine with an efficiency of say 85% or 0.85, experiences 15% power losses from input to output (as heat through friction) This would be typical for say a car, comparing crankshaft power to power at the drive wheels. No machine will exceed 100% efficiency > Work done = force * distance Efficiency = work done at output / work done at input > Mechanical Advantage (leverage) is distance moved by input / distance moved by output. Output force = input force * Mechanical Advantage


The output work of a machine compared to it input work is the of the machine?

Output(input), or O(i)


How does the output work compare to the input work for a machine that has an efficiency equal to 100 percent?

If a machine has 100 percent efficiency, the output work = the input work. That's actually basically what the efficiency of a machine is - output work / input work * 100.