Answer to Question #305819 in Physics for percy

Question #305819

Two point charges q1 = 25nC and q2 = -75nC are separated by a distance of 3.0 cm. Find the magnitude and direction of (a) the electric force that q1 exerts on q2 and (b) the electric force that q2 exerts on q1.


1
Expert's answer
2022-03-04T08:31:13-0500
F=kq1q2r2F=k\frac{q_1q_2}{r^2}F=91092510975109(0.03)2=0.019NF=9*10^9*\frac{25*10^{-9}*75*10^{-9}}{(0.03)^2}=0.019\:\rm N


(a) toward q1

(b) toward q2


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