An electron is projected horizontally into the space between two oppositely charged metal plates. The electric field between the plates is 472.0 N/C, directed upward. If the vertical deflection of the electron as it leaves the plates is 8.60 mm, how much has its kinetic energy increased due to the electric field? J A metallic sphere has a charge of +4.00 nC. A negatively charged rod has a charge of 6.00 nC. When the rod touches the sphere, 6.18 109 electrons are transferred. Elementary charge is 1.602 1019 C. What is the charge on the sphere after the electrons were transferred? nC A point charge q = 2.50 nC is initially at rest adjacent to the negative plate of a capacitor. The charge per unit area on the plates is 4.20 C/m2 and the space between the plates is 6.10 mm. What is the kinetic energy of the point charge just before it hits the positive plate, assuming no other forces act on it? J Please help me