Chris wants to make two objects have the same change in velocity. Object A has a mass of 200g and Object B has a mass of 300g. Which object will Chris have to exert a greater force onto?

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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