A +7.00 uC point charge is moving at a constant 8.00 x 10^6 m/s in the +y-direction, relative to a reference frame. Part A: At the instant when the point charge is at the origin of this reference frame, find the magnetic-field vector B it produces at point x = 0.500 m, y = 0, z = 0. Enter your answers numerically separated by commas. Part B: At the instant when the point charge is at the origin of this reference frame, find the magnetic-field vector B it produces at point x = 0, y = -0.500 m, z = 0, Enter your answers numerically separated by commas. Part C: At the instant when the point charge is at the origin of this reference frame, find the magnetic-field vector B it produces at point x= 0, y = 0, z = +0.500 m. Enter your answers numerically separated by commas. Part D: At the instant when the point charge is at the origin of this reference frame, find the magnetic-field vector B it produces at point x = 0, y = -0.500 m, z = +0.500 m. Enter your answers numerically separated by commas