1. The problem statement, all variables and given/known data Point A is at a potential of +240 V, and point B is at a potential of -120 V. An -particle is a helium nucleus that contains two protons and two neutrons; the neutrons are electrically neutral. An -particle starts from rest at A and accelerates toward B. When the -particle arrives at B, what kinetic energy (in electron volts) does it have? in eV 2. Relevant equations 3. The attempt at a solution W = q * (chng in V) q is the charge stored by a dialectric capacitor. and change in V is the electric potential difference. chng in V = Vb - Va = -360 V correct? so where does the q come from?