2. A converging duct is supplied by a gas (R=2078 J/kg. K & γ = 1.3). Determine Mach number at one section of 10 cm2 area where the pressure and temperature are 100 kPa and 15 oC while gas flows at 300 m/s. Assuming one-dimensional isentropic flow, find Mach number, pressure, area and velocity at exit of the duct where the gas has a temperature of -10 oC.

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.

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor