The turbine section in a jet engine receives gas (assume air) at 1200 k, 800 kpa with an ambient atmosphere at 80 kpa. the turbine is followed by a nozzle open to the atmosphere, and all the turbine work drives a compressor. find the turbine exit pressure so that the nozzle has an exit velocity of 800 m/s.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.