Physics, 07.10.2019 17:40 keepcalmands2930

Efficiency is
a.
the percentage of energy lost to the surroundings as heat.
b.
the percentage of energy that is actually used to perform work.
c.
the entire amount of energy.
d.
the time it takes for half of the energy to be used.

Answers: 2

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Efficiency is
a.
the percentage of energy lost to the surroundings as heat.
b.