I NEED HELP QUICKLY!! (2)

Question 4 (1 point) ) Listen A ball with a mass of 2 kg is lifted to a height of 2 meters. How much potential energy does the ball have now? 39.2 J 8J 19.6 J 78.4 J Question 5 (1 point) Listen Which are examples of kinetic energy? (Select all that apply.) Atoms bouncing in matter A baby kicking her leg A ball on the roof of the house A ball flying through a window A stretched elastic band A person pushing a spring down Question 6 (2 points) Listen Two cars with the same mass run into each other going at a speed of 10 m/s and have an inelastic collision. a) What do you predict will happen to the cars after the collision? What will be the speed of the cars? b) Explain the connection of your prediction to momentum