Air enters a nozzle in steady flow at 280 kPa and 77 C with a velocity of 50 m/s. The air leaves the nozzle at 85 kPa and 320 m/s. The atmosphere which surrounds the nozzle is at 20 C. The nozzle is not well insulated; heat transfer losses from the nozzle are estimated as 0.35 kJ/kg. Using the air tables find the exit temperature of the air and the total entropy change for the process.

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?