Answer:
the force between the two charges is 198.37 N
Step-by-step explanation:
Given;
charge of the first particle, Q₁ = -3 x 10⁻⁵ C
charge of the second particle, Q₂ = 9.0 x 10⁻⁵ C
distance between the two charges, r = 0.35 m
The force between the two charges is calculated from Coulomb's law;
![F = (kQ_1Q_2)/(r^2)](https://img.qammunity.org/2022/formulas/physics/high-school/7ery26ztlhqlvg2ptgtjip086qkf9twb5q.png)
where k is Coulomb's constant = 9 x 10⁹ Nm²/C²
![F = ((9* 10^9)(3.0* 10^(-5))(9*10^(-5) ))/(0.35^2) \\\\F = 198.37 \ N](https://img.qammunity.org/2022/formulas/physics/high-school/2ukdb3kpqejxsrwsn3ah4bcfoxj8bcdzyy.png)
Therefore, the force between the two charges is 198.37 N