Step-by-step explanation:
Given that,
Charge 1,
![q_1=8.01\ nC=8.01* 10^(-9)\ C](https://img.qammunity.org/2020/formulas/physics/college/du28lfm1zsrdbmcvknp6o0cm64ll9fe0bp.png)
Charge 2,
![q_2=3.86\ nC=3.86* 10^(-9)\ C](https://img.qammunity.org/2020/formulas/physics/college/kvoj8hlos6hcspne36ylzi1sot4lz85e5g.png)
Distance between charges, d = 1.9 m
We need to find the electrostatic force that one charge exerts on the other. It is given by :
![F=k(q_1q_2)/(d^2)](https://img.qammunity.org/2020/formulas/physics/high-school/7fod5ai3y754draq9yqcs8vv8rzn5ut8ga.png)
![F=9*10^9*(8.01* 10^(-9)* 3.86* 10^(-9))/((1.9)^2)](https://img.qammunity.org/2020/formulas/physics/college/i1teu7fibwfp3vts6gnyy40ugn2jnzdbj6.png)
![F=7.70* 10^(-8)\ N](https://img.qammunity.org/2020/formulas/physics/college/kmrib4uzkakonr1nzur1ssaihgrc3ruk15.png)
So, the magnitude of electric force that one charge exerts on the other charge is
. Hence, this is the required solution.