A baseball thrown straight up reaches a maximum height of 15 m in 2.1 s. What is the acceleration experienced by the ball when it reaches maximum height if “up” is defined as the positive direction?

a.

explanation:

where is the photo and the answer choices?

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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