Recent content by cotsiospower

the only thin i found is: E=(k*|q|)/r*r where k=9*10^9 Any idea?

Homework Statement Hi. I need help with the problem attached. I need to find the ΣE of the point and the direction angle... All information needed are on the attachment... [b]2. Homework Equations [ The Attempt at a Solution There is no attempt since the teacher said nothing...