Alens uses what process to deflect light rays passing through it? a. reflection b. refraction c. absorption d. transparency

I know this is from 2 years ago.

Explanation:

But I'm trying to get a challenge done, and it's B. refraction.

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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