A 250 gram mud ball is thrown at a speed of 12 m/s perpendicular to a brick wall. Upon making contact with the wall the mud ball comes to rest in 0.08 seconds. Find the change in momentum and the average force acting on the ball. What was the average acceleration

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

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

What are the north and south poles of a solenoid change with?