Three charged marbles are glued to a nonconducting surface and are placed in the diagram as shown. The charges of each marble are q1 = 6.45 uC, q2 = 1.19 [IQ and q3 = 2.15 uC. Marble ql is a distance r1 = 3.00 cm to the left of the marble qz, while marble q3 is a distance r3 = 2.00 cm to the right of the marble qz, as shown. 3/ A + )( + '1 q] 'l2 '7'; r, = U m observation ' point You're going to be asked to determine the electric field at the observation location marked by an 'X' in the figure, a distance r' = 1.00 cm to the left of the center marble. What values should you use for the different rs when you calculate the electric field at the observation location: clue to charge ql? :] X due to charge qz? :] m due to charge q3? :] m Calculate the magnitude of the net electric field at the observation location. __N/C What is the direction of the net electric field at the observation location? m