1. The potential at location A is 524 V. A positively charged particle is released here from rest and arrives at location B with a speed vB. The potential at location C is 971 V. and when released from rest from this spot, the partice arrives at B with twice the speed it previously had or 2 vB. Find the potential at B.
2. An electron is released from rest at the negative plate capacitor and accelerates to the positive plate. The plates are separated by a distance of 1.2 cm, and the electric field within the capacitor has a magnitude of 2.1E6 V/m. What is the KE of the electron just as it reaches the positive plate?