What is the magnitude of the charge on a second object?

[rainyday4511]

Homework Statement

Two charges are separated by a distance of 17 m. The charge on one object is 22 x10-6 C and the magnitude of the electrostatic force between them is 0.8 N. What is the magnitude of the charge on the second object?
(enter your answer as a decimal with at least 4 non-zero digits)

Homework Equations

The Attempt at a Solution

 

[BOYLANATOR]

Have you ever come across an equation which gives the force between two charged particles?

 

[rainyday4511]

Are you asking me do I have the equation for this problem?

 

[BOYLANATOR]

Are you asking me do I have the equation for this problem?

Yes.

 

[rainyday4511]

F= 9x10 (with an exponent of 9) q1 q 2 divided by D2

 

[BOYLANATOR]

Ok, does that equation apply to this problem? Which variables are unknowns in this situation?