The I − V characteristics of a diode with a knee voltage V_knee = 0.8 volts is shown in Figure 1. This diode is used in the circuit shown in Figure 2, in which an input signal of V_in = 100sin(1000t) volts is applied. What is the voltage V_out (in volts) across the capacitor at steady state? Assume that the capacitor is initially discharged and the reverse breakdown voltage of the diode is much greater than 100 volts.