An individual on earth and an individual on the moon each hold a one-kilogram roc exactly one meter above the surface. Just as they release them, which rock has more potential energy? (5b1; DOK 2) O They have the same potential energy because they have the same mass. They have the same potential energy because they have the same mass and are at the same height. The Earth rock has more potential energy because it is farther away from the center of the Earth than the Moon rock is from the center of the Moon. The Earth rock has more potential energy because the value of "g" is greater on Earth than on the Moon.

How much energy is required to move a 900 kg object from the Earth's surface to an altitude twice the Earth's radius? Need Help? Read It

While I can kick a soccer ball so that it has a speed of 10 m/s, David Beckham can kick a  ball so that it has a speed of 45 m/s. How many times greater is the Kinetic Energy of the ball kicked by Beckham than the ball kicked by me?

C7 19.) You reach out the second story window, which is 5 m above the sidewalk, and throw a 0.5 kg ball straight upward with 2 J of kinetic energy. (a) What is the ball's gravitational potential energy when it is released?__________________________ J(b) What is the ball's gravitational potential energy just before hitting the sidewalk?___________________________ J(c) What is the ball's kinetic energy just before hitting the sidewalk?___________________________ J   (d) How would the answer to part c change if the ball had initially been thrown straight down with 2 J of kinetic energy? A.) stay the same B.) decrease     C.) increase

A football throws a ball from across the field, this causes the ball to have a change of mass of 1.0 x 10-15 kg. How much energy is the football player exerting?

please help with questions 32,33 and 34

Point Height (y) (m) Speed (v) (m/s) Potential Energy (J) Kinetic Energy (J) Mechanical Energy (round off to the nearest thousands) A 8 m 0 m/s 3430 J 0 J 3000 J B 3 m 8.8 m/s 1470 J 1936 J 3000 J C 2 m 9.9 m/s 980 J 2450 J 3000 J   - Calculate the ratio of the mechanical energy at B and mechanical energy at A (EB/EA) and (EC/EB). What do these ratios tell you about the conservation of energy? - Is the mechanical energy conserved between A and B? Explain. - Is the mechanical energy conserved between B and C? Explain