physics :

Question 2 10 pts For point charge 9 [AC and point charge -7.4 uC located at the same positions as in the previous question, (+5.0, 0.0) and (0.0, +4.0) respectively, determine the magnitude of the net electric eld E at the origin (in N/C). Your answer should be a number with two decimal places, do not include the unit. Hmtluc=1o+c Question 3 10 pts For point charge -3 ac and point charge 1.2 uC located at the same positions as in the previous question, (+5.0, 0.0) and (0.0, +4.0) respectively, determine the direction of the net electric eld E at the origin. 1pc=10c Your answer should be an integer, do not include the unit. Hint: The direction is indicated by an angle measured in degrees counterclockwise from the positive x axis