Which do you think changes the land more frozen water or flowing water?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Select the three ways that the parallel-plate capacitor differs from a car battery.