Physics

Problem

Calculate the magnitude of the electrostatic force between a

+3.0\,\mu\text{C}

charge and a

-2.0\,\mu\text{C}

charge separated by

5.0\,\text{cm}

in air. Take

\dfrac{1}{4\pi\varepsilon_0}=9.0\times10^{9}\,\text{N\,m}^2\text{C}^{-2}