A ball with mass (m) is dropped from a certain height. Which equality could be rearranged to find the velocity of the ball after it has fallen through a certain distance? A.
(12)mv2 = mgΔh
B.
(12)mv2 = (12)kx2
C.
12mv2=kq1q2r
D.
mgΔh = (12)kx2

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

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.)