6. What can scientists predict by knowing how fronts interact? O A. the amount of carbon dioxide present in the atmosphere
O B. general weather patterns each front is likely to bring
O C. weather and climate for the next 20 years
OD. the amount of precipitation that will fall with each front
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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.