A force of 5.00 N is applied to a spring whose elastic constant is 0.250 N/cm. Its change in length is

20.0 cm
23.5 cm
25.0 cm
30.5 cm
35.0 cm

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?

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

What are some properties of transverse waves?