1. The problem statement, all variables and given/known data The capacitor in the circuit has 537 μC of charge on it at t=0. The resistor is 1,923 Ohms, and the capacitor is 1,251 microFarads How long will it take for the charge on the capacitor to drop to 195 μC? Please use only SI (metric) system units in your answer! 2. Relevant equations ?? I do not know. 3. The attempt at a solution I am so lost.