In real machines, efficiency is always less than 100% 100% more than 100%

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

For which pair of objects would adding the same a

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt