Here u go cuz u insisted :) crooked finger m. f. don't ask y i got a crooked finger (well i fell off the sk8board and it broke lol)

The two required components for a generator

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.