If Mr. May had 2,450,000 J of P. E. on the top of the hill, how much Kinetic Energy does he have on the bottom of the hill. (In a perfect world with no friction)

Which changes of state do the labels represent? a: b: c:

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).