A runaway railroad car, with mass 30x10^4 kg, coasts across a level track at 2.0 m/s when it collides with a spring loaded bumpe
r at the end of the track. If the spring constant of the bumper is 2x10^6 N/m, what is the maximum compression of the spring during the collision? (Assume collision is elastic)
Ionizing radiation has sufficient energy that it can convert atoms and molecules into ions.
It has a sufficient amount of energy that it can separate tightly confined electrons from the orbit of an atom and causing that atom to become ionized.