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What is the mechanical efficiency of a machine that produces 400 joules of work output from work input of 500 joules?
Wiki User
∙ 7y ago
The efficiency is 80%.
To find the efficiency, 400/500 = 80%.
Lincoln Wolf
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What is the efficiency of a machine that requires 100 joules of input energy to do 35 joules of useful work?
The machine efficiency is 35 percent (35/100).
A machine requires a work input of 180-joules to achieve a work output of 140-joules. What is the efficiency of the machine?
94 percent (which is easily calculated, 3760/4000x100).
What does efficiency tell you about a machine?
The efficiency of a machine tells you how much usefull energy it will put out compared to the amount of energy that's put in. The usefull output energy is usually less (never greater) then the input because of energy loss due to frictional heating. For example if 120 joules of energy or work is put into a lifting machine, you might only get out 110 joules of lifting work because 10 joules is lost to heat. The efficiency of the machine is then ; (110/120) x 100% = 91.7% . I think for most practical machines anything above 90% efficient is quite good. (The terms work & energy are used interchangebly here because work is a transfer of energy).
What is the efficiency of a pulley system when its work out equals 100 joules and its work in equals 150 joules?
If the input energy is 210 joules and the efficiency of the system is 30%,then the output energy is30% of 210 = (0.3 x 210) = 63 joules.
What is mechanical energy measured in?
Joules
What is the mechanical efficiency of a machine that produces 400 jouls of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the machine efficiency of a machine that produces 400 joules of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the mechanical efficiency of a machine that produce 400 joules of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the efficiency of a machine that requires 100 joules of input energy to do 35 joules of useful work?
The machine efficiency is 35 percent (35/100).
Find the efficiency of a machine that does 800 joules of work if the input work is 2400 joules?
.33
What is the mechanical efficieny of a machine that produces 400 joules of work output from a work input of 500 joulesd?
.8 or 80%i.e. The output is 80% of the input.
What is the machanical efficieny of a machine that produces 400 joules of work from work input of 500 joules?
400/500 = 80% efficient
What is the application of rational algebraic expression in real life situation?
Manufacturing. A machine has a work output of 14ax4 j (joules) and a work in put 7a2x5 j. What is the eficiency of the machine? efficiency in % = work output in joules work input in joules
What is efficiency measured in?
Efficiency is measured in joules.
A machine requires a work input of 180-joules to achieve a work output of 140-joules. What is the efficiency of the machine?
94 percent (which is easily calculated, 3760/4000x100).
What is the efficiency of a pulley system when its work out equals 100 joules and its work in equals 150 joules?
If the input energy is 210 joules and the efficiency of the system is 30%,then the output energy is30% of 210 = (0.3 x 210) = 63 joules.
What does efficiency tell you about a machine?
The efficiency of a machine tells you how much usefull energy it will put out compared to the amount of energy that's put in. The usefull output energy is usually less (never greater) then the input because of energy loss due to frictional heating. For example if 120 joules of energy or work is put into a lifting machine, you might only get out 110 joules of lifting work because 10 joules is lost to heat. The efficiency of the machine is then ; (110/120) x 100% = 91.7% . I think for most practical machines anything above 90% efficient is quite good. (The terms work & energy are used interchangebly here because work is a transfer of energy).
