Physics, 18.01.2021 14:00 zitterkoph

An electrical motor is used to raise an object. The object transfers 150J of useful energy when the motor is supplied with 250J of electrical energy. A) what is total energy supplied to the motor?
B)what is the useful energy transfer?
C) what is the efficiency?

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An electrical motor is used to raise an object. The object transfers 150J of useful energy when the...