In a diode circuit, where an AC voltage vIN, with a DC offset of 5 V and AC amplitude of 10 mV, is applied to a 1 MΩ resistor and a PN junction diode. Let’s express vIN = VIN + vin, where VIN = 5 V is the DC offset and vin = 10 cos(t + ϕ) mV is the AC component. Since vIN oscillates between 4.99 V (= 5 − 0.01) and 5.01 V (= 5 + 0.01), the diode is always in reverse bias. Required:
Draw the Vout waveform when the diode has 0.7V voltage drop.

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.