Hi, I’m having trouble with this problem on my homework. A beam of muons is injected into a storage ring, a device that uses electromagnetic fields to maintain the muons in uniform circular motion. The ring’s radius is 53 m. How close to c is the speed of the muons that is needed so that 106 revolutions are possible before the muons decay? In its own rest frame, the average muon decays in 2.2 µs. The speed of light is 3 × 10^8 m/s. Answer in units of c.