two point charges are located on the positive x axis of a coordinate system charge q1=1.0nC is 2.0cm from the origin, another charge q2=-3.0nC os 4.0cm from the origin .what is the total force exerted by these two charges on charge q3=5.0nC located at The origin
Force
F1=kq1q2r2F_1=\frac{kq_1q_2}{r^2}F1=r2kq1q2
F=kq1q3r2+kq2q3r2F=\frac{kq_1q_3}{r^2}+\frac{kq_2q_3}{r^2}F=r2kq1q3+r2kq2q3
F=kq3r2F={kq_3}{r^2}F=kq3r2
F=kq3(q1r2+q2r2)F=kq_3(\frac{q_1}{r^2}+\frac{q_2}{r^2})F=kq3(r2q1+r2q2)
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