# Possible variables for Coulombs Law?

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1. Jan 16, 2017

### Amber Mayson

• Member warned about posting substandard question in wrong forum section
COULOMBS LAW
F= K Q1 Q2 / R2

How would I solve for Q1 and Q2?

2. Jan 16, 2017

### BvU

Hi,

This really quantum physics ?

You have one equation for two unknowns ? Not enough !

3. Jan 16, 2017

### Amber Mayson

I am not asking for a specific equation to be solved. I am asking if asked to solve for q1 and q2 how would I manipulate this equation?

4. Jan 16, 2017

### BvU

You can not solve for two unknowns if you only have one equation.

5. Jan 16, 2017

### Amber Mayson

How would I solve for q1 and q2 separately?

6. Jan 16, 2017

### BvU

If you know $F, k, q_1$ and $r$ you solve for $q_2$ with $q_2 = \displaystyle {F r^2 \over k q_1 }$