Acar starts from rest and accelerates to 45.0 m/s in 15 seconds, after which it travels at a constant speed for 1.0 minute, and then comes to rest in 30 seconds. calculate the acceleration of the car during the first 15 seconds.

3m/s^2

Explanation:

Plot a speed time graph to see it better

basically

acceleration = Final velocity- initial velocity/time (s)

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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it would be c. predictability