A wooden ball with a mass of 0. 45 kg is at rest when it is tapped by a wooden mallet that applies an average force of 83 n to the ball. After contact with the mallet, the ball moves forward at 1. 3 m/s. How long was the mallet in contact with the ball?.

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?