What is gravitational potential of a motionless 20kg rock that is 100m above the surface of the earth

What is the equation for solving the displacement?

Kinetic energy is dependent on which of the following?

Two astronauts in space with a baseball decide to play catch to pass the time. In the language of conservation of momentum, describe what happens to each astronaut as they start to toss the ball back and forth

If an object is dropped from height h = 8 m, then what is the velocity just before impact?

Which of the following atoms has the smallest radius? The Periodic Table

A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?

Does temperature affect the dissolving phase?

In a clear, coherent, paragraph-length answer, explain why the speed of the apple half way between the release and the maximum height is not half the initial speed.

In pea plants Round (R) is a dominant trait and wrinkled nose (r) is a recessive trait. Which combination would result in wrinkled seeds? 1. RR 2. Rr 3. rr 4. ww