\(=\ 9x10^9\frac{Nm^2}{c^2}\)           \(\left(\frac{-3.0x10^{-6}\ C}{\left(0.3\ m\right)^2}\right)\)
\(=9x10^3\ \left(-3\right)\ \left(\frac{10}{3}\right)^2\)
\(=\ -3x10^5N\)
\(=.300000N\)