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In a machine, 200 enery was Last as heat. If the energy input is 600,, what is the effenciency of the machine?​

In a machine, 200 enery was Last as heat. If the energy input is 600,, what is the effenciency of the machine?​
asked 164k views
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In a machine, 200 enery was Last as heat. If the energy input is 600,, what is the effenciency of the machine?​

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User Kazutaka
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7.7k points

1 Answer

2 votes

Step-by-step explanation:

only 400 J did work as 200 of the 600 J was lost

eff = 400/600 x100% = 67%

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User Hacko
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