1. A 4kg ball is on a 5m ledge. if it is pushed off the ledge, how much kinetic energy will it have just before hitting the ground? 2. a 3 kg rock sits on a 0.8 meter ledge. how much gravitaional potential energy does it have while it sits on the shelf?

b. what will happen to the gravitaional potential energey if the rock falls off the shelf

c. if it is pushed off, how fast will it be going at the bottom just before it hits the ground?

3. a 0.003 kg fog jumps into the air at 3 m/s. what is the energy of the movement of the frog?

4. as the frog rises in the air he gains (blank) energy and loses (blank) enegry since he slows down.

5. assuming that all of the kinetic energy of teh fog is converted to potential enegery at the top of his jump before he falls back down to the ground, what height would he acheive with this jump?

Whoever answers all five questions will get brainliest and a five star rating/thanks please help me asap this is due tomorrow!!! :(

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

An charge with mass m and charge q is emitted from the origin, (x, y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.