Assume we have a 1D print pattern with a resolution (i. e., spatial sampling frequency) of 120 dots per cm, which equals approximately 300 dots per inch (dpi) and a total signal length of N= 2800 samples. Calculate the Sampling interval

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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the components of a vector are the parts of the vectors that are to each other.

b perpendicular

the answer should be in the picture.