Whats the difference between kinetic and potential energy?

Suppose you hold a 12-cm3 block of aluminum and a 2.0-cm3 block of brass in your two hands. Which block has more mass?

Why is it useful to calculate average speed?

Why do people love sports? Why do they participate in sports? What has sports given back to people?

Wave can be described as A. a continuous transmission of energy from one location to the next B. The disturbance of particles in an area C. The transmission of energy through individual particles D. The motion of particles in a medium

Which sentences describe the cyclone device? A cyclone device accumulates fine particulates from the air by making a dirty air stream flow in a spiral path inside a cylindrical chamber.

What is the spine also known as

If a man has a mass of 74 kilograms runs 800 meters in 150 seconds, what is his average momentum?

Two lamps one rated 40W at 220 V and the other 60W at 220 V are connected in parallel to the electric supply at 220V.

A 45.0-kg person steps on a scale in an elevator. The scale reads 460 n. What is the magnitude of the acceleration of the elevator?

The entropy of a hot baked potato decreases as it cools. is this a violation of the increase of entropy principle? explain.