Make p^2 the subject of p^1 v^1 = p^2 v^2

The answer//////////////

Amagnetic field "does not" interact with stationary electric charges. so, a.hope my answer you : )

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.