Which of the following correctly compares uv rays and infrared waves? a. infrared waves have higher energy than uv rays. b. infrared waves have the same wavelength as uv rays. c. infrared waves have lower frequency than uv rays. d. infrared waves have shorter wavelength than uv rays.

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the 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?

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?