Superman takes 8 seconds to stop a runway train over a distance of 58 m using a power of 75000W. How much work was done to stop it?

What happens in a global convection cell

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

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?