RC Circuit discharge question - test prep for tomorrow 1. The problem statement, all variables and given/known data A charged 6[tex]\mu[/tex]F capacitor is discharged across a 2[tex]\Omega[/tex] resistor. How long does it take to lose half its stored energy? 2. Relevant equations ....so many: Q = CV V = IR W = I2R U = 1/2 QV V = V0e-t/RC 3. The attempt at a solution I'm not really sure where to start on this one. I'm trying to find a way to resolve Q and V where I only have one unknown, given C and R, but I'm having trouble. This is prep for an exam tomorrow, so any help is greatly appreciated.