15 The portion of the groundwater draining under the influence of gravity is called Select one:
ion
O a. Permeability
ob. Porosity
O c. Specific yield
O d. Specific retention

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