$[-/4$ Points$]$

OSCOLPHYS$201618\mathrm{.}3.$P$\mathrm{.}026.$

Two point charges $q_1$ and $q_2$ are $2\mathrm{.}95$ m apart, and their total charge is $20c.$ Note that you may need to solve a quadratic equation to reach your answer.

$($a$)$ If the force of repulsion between them is $0\mathrm{.}087$ N $,$ what are the two charges $($in $C)?$

smaller value

$C$

larger value

$C$

$($b$)$ If one charge attracts the other with a force of $0\mathrm{.}492$ N $,$ what are the two charges $($in $C)?$

smaller value

$C$

larger value

$C$