posted by andrew .
A 8.01-nC charge is located 1.95 m from a 4.06-nC point charge.
(a) Find the magnitude of the electrostatic force that one charge exerts on the other.
(b) Is the force attractive or repulsive?
F = k •q1•q2/r²,
k =9•10^9 N•m^2/C^2
q1 = 8,01•10^-9 C,
q2 = 4.06•10^-9 C,
r =1.96 m