A capacitor is charged to an initial voltage V0 = 9.0 V.
The capacitor is then discharged by connecting its terminals through a resistor. The current I (t) through this resistor, determined by measuring the voltage VR (t) = I t) with an oscilloscope, is shown in the graph.
(a) Find the capacitance C, the resistance R, and the total energy dissipated in the resistor.
(b) At what time is the energy in the capacitor half its initial value?
(c) Graph the voltage across the capacitor, VC (t), as a function of time.

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100 80 60 40 20 0 10 20 30 40 50 t (ms)