An infineon ipd30n06s2l-23 power mosfet is surface mounted on a 40 mm x 40 mm x 1.5 mm fr4 board with 6 cm2 of 70 μm thick copper on the drain contact. the board is mounted vertically in still air at 25 °c. you wish to keep the junction temperature below 100 °c. what is the maximum power dissipation?

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.