We have two particles A and B, moving at equal speeds. A is moving in the positive xdirection, while B is moving in the positive y direction. B also has twice the mass of A. After they collide, A is moving completely in the positive y direction, while B moves at 60 deg from the horizontal. (a) Find the final speed of each particle as a fraction of its initial speed. (b) Find how much initial kinetic energy is converted into thermal energy.