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2 years ago

What is the efficiency of a machine if your work on the machine is 1200 j and the machines output work is 300 j?

Physics

2 answers:

inysia [295]2 years ago

7 0

Answer:

The efificiency is 0,25 of the machine (25%). See the explanation below

Explanation:

We calculate the efficiency with this formula:

Efficiency = energy obtained/energy supplied= 300 Joule/1200 Joule

Efficiency= 0,25

Efficiency(%) = 0,25 x100 = 25%

julsineya [31]2 years ago

7 0

Answer:

The efficiency of the machine is 25%.

<u>Explanation: </u>

Efficiency is defined as the ratio of work done to the total energy supplied. Here, we know that the energy obtained or work done by a machine is 300J and the energy supplied to the machine is 1200J

We know that, $\text { Efficiency }=\frac{\text { work done }}{\text { energy supplied }}=\frac{300}{1200}=0.25(\%)=0.25 \times 100=25 \%$

Hence efficiency of the machine is 25%.

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aleksandr82 [10.1K]

Answer:

Explanation:

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2 years ago

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Salsk061 [2.6K]

Answer:

Explanation:

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from the figure

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