### Pair Production

##### Score: 1 Point

A photon strikes an electron of mass $m$ that is initially at rest, creating an electron-positron pair. The photon is destroyed and the positron and two electrons move off at equal speeds along the initial direction of the photon. If the energy of the photon was $kmc^2$, what is the value of $k$?

Basic

#### Statistics

Tried 11

Solved 7

First Solve @Kapersky