A pion has a rest energy of 135 MeV. It decays into two gamma-ray photons, bursts of electromagnetic radiation that travel at the speed of light. A pion moving through the laboratory at v=0.98c decays into two gamma-ray photons of equal energies, making equal angles (theta) with the original direction of motion. Find the angle (theta) and the energies of the two gamma-ray photons.

A pion has a rest energy of 135 MeV. It decays into two gamma-ray photons, bursts of electromagnetic radiation that travel at the speed of light. A pion moving through the laboratory at v=0.98c decays into two gamma-ray photons of equal energies, making equal angles (theta) with the original direction of motion. Find the angle (theta) and the energies of the two gamma-ray photons.