A nucleus is moving in the direction at 4.8x10^5 m/s when it decays into an alpha particle (4He) and a 234Th nucleus.
Part A If the alpha particle moves off at 36 degrees above the axis with a speed of 2.0×10^7 m/s , what is the speed of the thorium nucleus?
Part B What is the direction of the motion of the thorium nucleus?