A planar supersonic nozzle with area ratio A/A∗ = 1.7 is connected to a reservoir with p0 = 150 psia. The exit flow is uniform and in the direction θ1 = 0◦ . Outside the nozzle, the ambient pressure is pa=14.7 psia and the velocity is zero. (a) Characterize the wave phenomenon that occurs at the nozzle exit (expansion or compression?)
(b) Find the direction of the slipstream, θ2, immediately downstream of the exit

Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?

The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal