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That means that some energy is wasted. For example, it is quite common for part of the input energy to be converted into useless heat.
A drastic example is a traditional incandescent light bulb. Something like 5% of the energy gets converted into visible light. The remainder is radiated mainly as infrared - that is, heat radiation.
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Why is mechanical efficiency always less than 100 percent?
That simply means that some energy is lost, due to friction and other causes.
What is 10 percent less than 2500?
To find 10 percent less than 2500, you first calculate 10 percent of 2500 by multiplying 2500 by 0.10, which equals 250. Then, subtract 250 from 2500 to find the result. Therefore, 10 percent less than 2500 is 2250.
A percent change describing a decrease in a quantity?
Any percent less than 100.
Is 13 out of 8 less than 138 percent?
13 is 162.5 percent of 8 .
Is 6.7 more or less than 67 percent?
6.7 is more than 67 percent, as it is the same as 670 percent.
