A boy sleading down a hill accelerates alt 1.40m/s? If he started from rest, in what
In what distance would he reach a speed.
of 7s?

positive reinforcement? ?

elctricity and magnet is conversion to it

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.