What is the amount of energy efficiency we hope to get?, 100%, 30%, 0%, 50%, A certain process produces 300 Joules of energy from an input of 1,200 Joules of energy. What is its energy efficiency?, 20%, 25%, 30%, 70%, A man puts in 100 J of energy to move a box up a ramp. The useful work done is 80 J. What is the man's efficiency?, 80%, 20%, 800%, 78%, Calculate the efficiency of a heater which can convert 700 joules of chemical energy into 175 joules of heat energy., 10%, 25%, 35%, 50%

Efficiency calculation Gr8

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