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mafiozo [28]
3 years ago
9

Why does friction reduce a machine's efficiency

Physics
1 answer:
Sloan [31]3 years ago
4 0
Force causes an object to move in the same direction that the force is applied. Friction reduces efficiency<span> when two surfaces slide past each other, also </span>friction<span> resists their motion, and in </span>machines<span>, some input work is always used to overcome </span>friction<span>.
</span>
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Answer:

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In an experiment refractive index of glass was observed to be 1.45,1.56,1.54,1.44,1.54and1.53. Calculate mean value of refractiv
Sever21 [200]
The mean may be calculated by summing the values of the refractive index and dividing the sum by the number of experiments. This is:
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The mean absolute error is the sum of the absolute values of errors divided by the number of trials:
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