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## Homework Statement

Find the capacitance of a capacitor that stores 320 MJ(MegaJoules) when the potential difference across its plates is 170V.

Answer must be in nanofarads.

So basically q: is 320MJ

V: is 170V

I need to find C the capacitance.

## Homework Equations

To find the capacitance is q=CV.

## The Attempt at a Solution

I converted 320MJ to 320* 10 ^ 6 Joules for q. 320* 10 ^6 J is also 320 * 10 ^ 6 Coulombs. Let V the way it is 170V.

Divide (320 * 10 ^ 6 Coulombs) / (170 V) = 1882352.941 Farads. to convert farad to nanofarad I multiply the answer by 10^ 9 and got 1.882352941 * 10 ^ 15 nanofarads.

I put 1.88 * 10 ^ 15 nanofarads but apparently it is the wrong answer.