(15 points) An unstable nucleus of mass M disintegrates into three particles. One of nass M = 17 x 10-27 kg initially at rest moves along the +y axis with a speed of 6.0 . One of the particles, of mass mi = 5.0x10-27 kg, ed of 6.0 x 10 m/s; Another particle of mass ma = 8.4 x 10-27 kg, moves along the +x axis with xis with a speed of 4.0 x 100 m/s. (a) What are the magnitude and direction of the velocity of the third particle my? (b) What is the total energy given off in the process? After Before