2. two objects were lifted by a machine. one object had a mass of 2 kilograms, and was lifted at a speed of
2 m/sec. the other had a mass of 4 kilograms and was lifted at a rate of 3 m/sec.
a. which object had more kinetic energy while it was being lifted?

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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