Phys$1302$ Final Exam$-(01$sp$\text{'}24)$

A very small $4\mathrm{.}6-g$ particle carry ing a charge of $+3\mathrm{.}2C$ is fired with an initial speed of

$q,$

$q,8\mathrm{.}5\frac{m}{s}$ directly toward a second small $7\mathrm{.}8-g$ particle carrying a charge of $+6\mathrm{.}9C.$ The second particle is held fixed throughout this process. If these particles are initially very far apart, what is the closest they throughout this process.