Vector A has a magnitude of 20.0 units ne it points in a direction 320 degrees counterclockwise from the positive x-axis. What are the x and y components of A.

f is prop to m1xm2 double m1 double force

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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