If a 46 g tennis ball is hit by a racket that makes an angle of 45 degrees with the horizontal. The tennis ball lands 200 m away from the point it is thrown. What is the average force of impact, if the tennis ball and racket are in contact for 7 ms? (g=9.8 m/s^2) Answer Choices: A) 1165.6 N B) 874.2 N C)582.8 N D) 291.4 N E)145.7 N

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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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there are no atoms

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: