Numerical problem Two vehicles X and Y are moving in the same direction with the velocity of 12 m/s and 8 m/s respectively. Calculate the relative velocity of X with respect to Y. Also, calculate the relative velocity when they are moving in opposite directions [Ans: 4 m/s, 20 m/s)​

useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless useless

less than one you can't create energy

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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