Air enters the turbine of a jet engine at a rate of 40 kg/s. For every kg of air, 1/40 of fuel enters. Combustion products are discharged with an absolute pressure of 750 kPa and temperature of 120C. Determine the average velocity at the exit when the exit has a diameter of 0.3m.(Hint: Class)

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?