Three charges are located on a coordinate plane scaled off in meters. Charge #1 is 5 nC and located at (0,0). Charge #2 is -3.0 nC and located at (0,-.10). Charge #3 is 6.0 nC and is located at (-3,0). a) What is the net force (magnitude and direction) on the charge at the origin? b) What is the electric field strength om the charge at the origin? I have many ideas as to how I could start this but I'm not quite sure... I think I'm over thinking it. Any help would be much appreciated!