Question

The figure below shows four small charged spheres arranged at the corners of a square with side
d = 25.0 cm on each side.(Let q1 = +3.00 nC, q2 = +9.00 nC, q3 = +6.00 nC, and q4 = +5.00 nC. Assume q3 is located at the origin and +x axis is to the right and the +y axis is up along the page. Express your answers in vector form.)
(a) What is the electric field at the location of the sphere with charge +6.00 nC? E =--- N/C
(b) What is the total electric force exerted on the sphere with charge +6.00 nC by the other three spheres?F =---N

Answer 1

Not certain where the other charges are, it matters, as you are adding vectors.