A car accelerates from rest at an incredibly slow rate of 0.5 m/s/s.
How long does it take for the car to reach a final
velocity of 30 m/s?

60 seconds

Explanation:

Acceleration is the rate of change of velocity. For every second that passes, the velocity increases by an increment of 0.5. So after 60 seconds, the velocity of the car will be 30 m/s.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.