As the question states, we use Coulomb's law to get the electric force as:
, where F is the electric force, k is Coulomb constant, and q1 and q2 are charges separated by distance r.
The distance of separation from charge 1 to charge 3 is:
r13 = - 1.650 - (-1.210) = - 0.440 m
The electric force that q1 exerts on q3 is:
What is the net force exerted by these two charges on a third charge q3= 45.0nC placed between q1 and q2 and at x3=-1.210m?
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