[问答题]
Show, by conserving .f v0j1vl jj7dwp s,:tu:chg k8.i zt.5 l3:2bcgexycmomentum and energy, that it is impossible for an isolated electron to radiate only a single photon. (b) With this result in mind, how can you defend the photon exchange diaguc.h8e53kg: lc t:xzg i2yc .bram in (Fig. Below)?
