Explain Clearly

1. Three charges are plotted in a cartesian plane: Qi at (3, -5), Q2 at (0,6), and Q3 at (-5, -1), forming a triangle. The magnitudes of three charges are -5nC, 8nC, and 7.53nC respectively. Given the figure and directions of forces below, (a) Find the magnitude of the resultant force between F23 and Fai at charge Q3, and (b) Find the magnitude of the resultant force between F12 and Fa1 at charge Q1. Note: Each unit distance is in mm. Express your answer in Newtons. 02 5 4 F23 F12 -9 -7 -5 -3 -2 -1 0 3 -2 F31 3 -4 Q1 -5