A student sits outside of his home and begins to observe his surroundings. Which observation demonstrates the GREATEST amount of potential energy? A. A 1kg rock sitting on the ground because even though the rock is not moving, it has a small mass.
B. A 58kg person running at 5.0 m/s because the person is moving faster.
C. A 58kg person walking at 1.0 m/s because the person is moving slowly.
D. A 990kg car parked outside because even though the car is not moving, it has a large mass.

carla slowed down in the beginning of her trip, stopped, and then sped up

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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