Answer to Question #302079 in Physics for Mark

Question #302079

What iw the magnitude of the force that a 25x10^-6 C C charge exerts on a 10x10 ^ -6 C charge 8.5 cm away?

Expert's answer

The Coulomb's law says

"F=k\\frac{q_1q_2}{r^2}\\\\\n=9*10^9*\\frac{25*10^{-6}*10*10^{-6}}{0.085^2}=311\\;\\rm N"

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