When a collapsed core becomes so dense that only neutrons can exist there?

To begin a dive, a diver jumps into the air and then lands on the diving board, causing it to bend. What type of energy conversions occur as the board springs back and propels the diver up into the air?

2. A car traveling at 32m/s slams on the brakes after noticing an obstacle ahead. The car slows down at a constant rate before coming to a stop 4.2 seconds later. How far did the car travel in the 4.2 seconds it took to stop? a. 7.6 m b. 67.2 m C.

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 1.01 s after passing his window. Roger's room is on the third floor, 15 m above the sidewalk.

A train's mass is 500 kg and it's acceleration is 5 m/s. What is the net force on the train

A boy on a skateboard moving at a speed of 3 m/s drops a rock from a height of 1.2 m. A girl sitting still on top of a slide will see the rock

A runner with a mass of 75kg runs 6m/s calculate the kinetic energy stored in the runner

Watt which is a unit of power is equal to

A certain wave has a wavelength of 35 meters and a frequency of 4.0hz. What is the speed of the wave

What is the Force in Newtons exerted by an object with a mass of 15 kg and an Acceleration of 12 m/s2?

A large metallic sphere insulated from ground is charged with an electrostatic generator while a person standing on an insulating stool holds the sphere. why is it safe to do this?