Answer:
The magnitude of force is
![4.26* 10^(- 6) N](https://img.qammunity.org/2020/formulas/physics/college/znw9umuz0bygslin0dxjws7xgzjgyqixv4.png)
Solution:
As per the question:
The strength of Electric field due west at a certain point,
![\vec{E_(w)} = 710,000 N/C](https://img.qammunity.org/2020/formulas/physics/college/q988wbdtztbv7htlxn6yr3rshw6s54d19x.png)
Charge, Q = - 6 C
Now, the force acting on the charge Q in the electric field is given by:
![\vec{F} = Q\vec{E_(w)}](https://img.qammunity.org/2020/formulas/physics/college/upfnqqxo1sp9awkcfo6gyhlvxoqjz9jrwj.png)
![\vec{F} = -6* 710,000 = - 4.26* 10^(- 6) N](https://img.qammunity.org/2020/formulas/physics/college/e8wjumop57s767qbocy0qvtgjcz7h2rd4o.png)
Here, the negative sign indicates that the force acting is opposite in direction.