This question isn't really making any sense in my mind...
Here's the given diagram for the problem:
It asks you to determine the distance between B and C if the net electrostatic force on B is 78.9 N at 64.4 degrees north of east.
Wouldn't A be attracting B, while C would be repelling it, so the net force should rather be south of east?
If anyone could explain to me how it's north of east it would help me out a lot! Thanks