(6%) Problem 7: A charge q = 7.209 x 10 C moves with velocity 1 = Vz k = (3220 m/s) k in a region with uniform electric and magnetic fields: E = Eri = (21.5 V/m) i B = By j = (0.515 T) j Refer to the figure.\f[' - 17% Part (3) Using the symbols in the palette, not their numeric equivalents, enter an expression for the magnitude of the electric force acting on the charge. FE: Grade Summary Deductions 00-0 17% Part (b) Calculate the value, in newtons, of the magnitude of the electric force acting on the charge. FE= N. 1?% Part (1:) What is the direction of the electric force on the charge?r C) C) C) C) C) C) The positive z direction. The negative :1: direction. The negative y direction. The positive ydirection. The positive 3 direction. The negative z direction. [' - E 17% Part ((1) Using the symbols in the palette. not their numeric equivalents, enter an expression for the magnitude of the magnetic force acting on the charge. Grade Summary FB = i Deductions 0% D A 17% Part (e) Calculate the value, in newtons, of the magnitude of the magnetic force acting on the charge. FB = NA 17% Part (f) What is the direction of the magnetic force on the charge? O The positive y direction. O The negative y direction. O The positive x direction. O The negative z direction. O The negative x direction. O The positive z direction