5) An electron, initially at rest, accelerates through a potential difference of 1 V, gaining kinetic energy KE., while a proton, also initially at rest, accelerates through a potential difference of -1 V, gaining kinetic energy KE, which of the following relationships holds? 1. KEe = KEp 2. KE. KEp 4. The answer can't be determined from the given informationA spherical balloon contains a positively charged particle at its center. True or false, as the balloon is inflated to a larger volume while the charged particle remains at the center, which of the following is true? 1. The electric potential at the surface of the balloon increases. 2. The magnitude of the electric field at the surface of the balloon increases. 3. The electric flux through the balloon remains the same. 4. none of these