The angular momentum of the propellers of a small airplane points directly forward from the plane. (a) in what direction do the propellers rotate as seen from the rear of the plane? (b) if the plane is flying horizontally and suddenly pulls upward, in which direction does the nose of the plane tend to move? justify your answer. 4mths none

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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