Problem 4: An electron is initially at rest in a uniform electric field having a strength of 1.85 x 106 V/m. It is then released and accelerated by the presence of the electric field. Part (a) What is the change in the electron's kinetic energy, in kiloelectron volts, if it travels over a distance of 0.325 m in this field? Numeric A numeric value is expected and not an expression. AK = Part (b) Over how many kilometers would it have to be accelerated in the same electric field to increase its kinetic energy by 45 GeV? Numeric d = A numeric value is expected and not an expression. Problem 5: A particle with charge q = 12 C is located at the origin of the coordinate system shown in the figure. Point A is located at (3, 4) m. Randomized Variables q= 12 C y A (3, 4) q theexpertta.com Part (a) If (XA, YA) are the coordinates of point A, select the correct expression for the electric potential VA at point A in terms of the symbols given. SchematicChoice: k kq XA + YA kq q kq x + y/ kq x + y Part (b) Calculate the value of the electric potential at point A, in volts. Numeric A numeric value is expected and not an expression. VA= Part (c) Select the correct expression for the magnitude of electric field EA at point A in terms of the symbols given. SchematicChoice: k kq XA + YA kq kq kq x + y/ Part (d) Calculate the value of EA, in newtons per coulomb. Numeric A numeric value is expected and not an expression. EA =