I have indicated that reducing the level of friction improves the efficiency of a motor (or machine), this is because we make better use of the energy we put into the machine (less energy is lost overcoming friction).
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this is,List([102, 109)) I have indicated this is,List([0, 109))
the energy less energy this I reducing the level of friction we
put is lost is have indicated improves make
into the machine
because we make better use of the energy we put into the machine (less energy is lost
that reducing the level of friction improves the efficiency of a motor (or machine
the efficiency of a motor (or machine
better use of the energy