Trolley Type Trolley with one rubber band
Trolley with two rubber bands
Trolley with three rubber bands
Trolley with four rubber bands
Trolley with 1 kg/two rubber bands
Trolley with 2 kg/two rubber bands
Trolley with 3kg/two rubber bands
Trolley with 4kg/two rubber bands​

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

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?

Which bonds are found inside a water molecule