This is because we see evidence of plate movement in the fact that as we look at rocks farther and farther from the ridge, the rocks-- A)Have higher iron content

B)Are made up of smaller particles

C)Become thicker and thicker

D)Are consistently older

Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. a-if a bearing needs 4.0 s to solidify enough for impact, how high must the tower be? b- what is the bearing's impact velocity?