Respuesta :
The force acting between the particles is
[tex]F=k \frac{Q_{1}Q_{2}}{r^2}[/tex]
Then
[tex]Q_{2}= \frac{5.2 \times 10^-^5 \times 0.024^2}{ 9.0 \times 10^9 7.2 \times 10^-^8} =4.622 \times 10^-^1^1C[/tex]
[tex]F=k \frac{Q_{1}Q_{2}}{r^2}[/tex]
Then
[tex]Q_{2}= \frac{5.2 \times 10^-^5 \times 0.024^2}{ 9.0 \times 10^9 7.2 \times 10^-^8} =4.622 \times 10^-^1^1C[/tex]