An atom of beryllium (m = 8.00 u) splits into two atoms of helium (m = 4.00 u) with the release of 92.2 kev of energy. suppose the beryllium atom moved in the positive x direction and had a kinetic energy of 38.7 kev. one of the helium atoms is found to be moving in the positive x direction. find the direction of motion of the second helium, and find the velocity of each of the two helium atoms. solve this problem in two different ways: by direct application of conservation of momentum and energy; and by applying the results if the original beryllium atom is at rest to a frame of reference moving with the original beryllium atom and then switching to the reference frame in which the beryllium is moving.