Gas entering a rocket nozzle has a stagnation pressure of 1500 kpa and a stagnation temperature of 3000°c. the gas (k =1.35, r= 287.0 nm/kgk) expands isentropically to the ambient pressure. the rocket travels in standard atmosphere at 30,000 m. determine: a)- mach number at nozzle exit b)- throat and exit area [m^2] for a flow rate of 10 kg/s

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