11) a 0.2 kg apple on an apple tree has a potential energy of 10 j. it falls to
the ground, converting all of its pe to kinetic energy. what is the velocity
of the apple just before it hits the ground?
now choose from one of the following options why?
om/s
2 m/s
10 m/s
50 m/s

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.