Calculating Capacitance for a Given Energy and Voltage?

[truettct]

Homework Statement

A capacitor stores 0.12 J energy when connected to 6 V voltage source. What is the capacitance of this capacitor? (UNIT:uF)

I am just not sure how to go about answering this question.

The formula for capacitance is C=(Q/V), but I am not sure how to incorporate energy into that formula.

Any help would be appreciated

Thanks

 

[Antiphon]

E=1/2c*v*v.