Achild on a sled come flying over the crest of a small hill. his sled does not leave the grounf, but he feels the normal force between his chest and the sled decrease as he goes over the hill. explain the decrease using newtons second law

the answer would be 32*f

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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