One quater as your moving away more!
Rocks get older as you move away from the water surface
Di = two, just like 'bi'. --take di-zygotic twins, or di-atomic + di-sulphide, etc.
The answer is A. Have you ever heard the saying, opposites attract? That comes from magnetism. Like poles repel each other while opposites attract.
;Net force = mass of the body × acceleration of the body due to the net force
; 5000 = 2500 a...then divide both sides by 2500
; acceleration(a) = 2 m/s^2
