Question

Can someone help me pls

Answer 1

Answer:  $\bold{k=\dfrac{Fr^2}{qQ}}$

Step-by-step explanation:

Isolate k by multiplying both sides of the equation by $\dfrac{r^2}{qQ}$

$F=k\dfrac{qQ}{r^2}\\\\\\F\bigg(\dfrac{r^2}{qQ}\bigg)=k\dfrac{qQ}{r^2}\bigg({\dfrac{r^2}{qQ}\bigg)$

$\large\boxed{\dfrac{Fr^2}{qQ}=k}$