Answer:
Explanation:
Given
Charge [tex]Q_1=+5.5\mu C[/tex]
[tex]Q_2=-17\ mu C[/tex]
When the two charges are touch then the net charge on the two sphere will be same after some time
[tex]Q=\frac{Q_1+Q_2}{2}[/tex]
[tex]Q=\frac{5.5-17}{2}=-5.75\ \mu C[/tex]
Now the force between this tow charges are when they are separated with [tex]d=60\ mm[/tex]
[tex]F=\frac{kq_1q_2}{r^2}[/tex]
[tex]F=\frac{9\times 10^9\times (-5.75)^2}{(60\times 10^{-3})^2}[/tex]
[tex]F=82.65\ N[/tex]
