The energy transfer equation for lifting a piece of metal is given below. Calculate the efficiency of the crane. \(efficiency = \frac {useful \ energy \ transferred}{total \ energy \ supplied}\) ...

As power is equal to useful energy transferred per second, another way to calculate efficiency is to use the formula: \(efficiency = \frac{useful~power~transferred}{total~power~supplied}\) ...

Rhett is a DC based executive coach who covers entrepreneurship. Does that efficiency rate seem low for an average customer service agent? Keep in mind that humans aren’t machines—they need ...