A point charge q = ?2.3 nC is initially at rest adjacent to the negative plate of a capacitor. The charge per unit area on the plates is 4.4 C/m2 and the space between the plates is 7.0 mm.
(a) What is the potential difference between the plates? _______________ KV
(b) What is the kinetic energy of the point charge just before it hits the positive plate, assuming no other forces act on it? ____________ uJ