In 6 seconds, a total of 3 waves crash onto the shore of a beach. The distance between each wave crest on the water is 8 meters. Find the: Wave length, Frequency, Speed, and period

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?