Calculating Current in RC Circuit with Closed Switch

[arl146]

Homework Statement

What is the current through R2 immediately after the switch S is closed?
C = 7.95x10^(-6) F , R1 = 27.5 Ohm , R2 = 10.5 Ohm , and Vo = 20.0 V

Homework Equations

I don't know what to use?

The Attempt at a Solution

I thought maybe I use two loops, the left and right and then a junction? I don't know if I have to do a matrix or what for this. Maybe I'm missing something simple here?

 

[arl146]

Please help !

 

[gneill]

Something simple. What's the voltage across the initially uncharged capacitor immediately after the switch is closed?

 

[arl146]

Something simple. What's the voltage across the initially uncharged capacitor immediately after the switch is closed?

Well they say C= 7.95 x 10^(-6) F what is that number for? I don't know.. :(
if it is uncharged is it just zero ?

 

[arl146]

Oh, okay, I got it. It's just zero then. Thanks :D