what is the kinetic energy of a hammer that starts from rest and decreases its potential energy by 10k?

The more molecules an object contains, the more energy it has. T or F

Two planets in space gravitationally attract each other. if both the masses and distances are doubled, the force between them is

Determine the quantity of heat transferred by 20.0 grams of water where the temperature of the water changes from 65°C to 20°C, the temperature of the room

Two bar magnets are labeled A and B. The ends of each magnet are numbered 1 or 2, but the poles are not labeled. When A1 is brought near B1, the bars repel. Which conclusion is best supported by the data? A.

Which type of wave was produced in the "Waves" lab? A transverse wave B longitudinal wave C surface wave

A chemical is one or two letter used to represent an element

A student throws a 5.0-newton ball straight up. What is the net force on the ball at its maximum height? (1) 0.0 N (3) 5.0 N, down (2) 5.0 N, up (4) 9.8 N, down

An object starts from rest and falls freely for 40. meters near the surface of planet P. If the time of fall is 4.0 seconds, what is the magnitude of the acceleration due to gravity on planet P?

Consider two metallic rods mounted on insulated supports. One is neutral, another positively charged. The charged rod is brought close to the neutral one (no touching!

Which term identifies the dark smooth areas on the surface of the moon? craters terrae maria regolith