In the figure below, projectile particle 1 is an alpha particle and target particle 2 Is an oxygen nucleus, The alpha particle is scattered at angle 8 -62.0" and the oxypen nucleus recalls with speed 1.10 x 10" my's and at angle d, - 55.0". In atorpic mass units, the mass of the alpha particle Is 4.00 u and the mass of the oxygen nucleus is 16.0 u, (The collision is not elastic.) (a] what is the final speed of the alpha particle? m/s (b) What is the Initial speed of the alpha particle? m/s Additional Materials