A converging-diverging nozzle operating at steady state has a throat area of 3 cm^2 and an exit area of 6 cm^2. Air as an ideal gas with k = 1.4 enters the nozzle at 8 bar, 400 K, and a Mach number of 0.2 and flows isentropically throughout. If the nozzle is choked and the diverging portion acts as a supersonic nozzle, determine the mass flow rate, in kg/s, the Mach number, pressure, in bar, and temperature, in K, at the exit. Repeat if the diverging portion acts as a subsonic diffuser

1in2 processor chip can be modelled as an isothermal plane wall of silicon, isothermal on both sides. the power input to the bottom of the plane wall, or the processing power of the chip, often called the thermal design power (tdp), is 100w. assume the periphery is adiabatic. the silicon is 400 microns thick. the temperature at the junction, or in this case on the bottom of the isothermal plane wall, is 85°c. what is the top surface temperature, assuming that the only mode of heat transfer is conduction