Capacitors/Resistors/time constant current

[physics213]

Homework Statement

IMAGE IS ATTACHED!

The given pair of capacitors in the figure below are fully charged by a 14.0 V battery. The battery is disconnected and the circuit closed. Answer the following after the circuit has been closed for 1.80 ms.

Homework Equations

V=IR
q=Q(1-e^-t/RC)

The Attempt at a Solution

I know we have to at least use the second equation above but I just don't know how to start this problem.

 

[physics213]

whoops! Forgot the include the questions in the post, haha:

a) How much charge remains on each capacitor (3 and 2 microF)?

b) What is the current in the resistor?

Thanks guys.

 

[Redbelly98]

What is the effective capacitance, which you can use in place of the two capacitors?