1. steam flows steadily through an adiabatic turbine. the inlet conditions of the steam are 6 mpa, 400°c, and 70 m/s, and the exit conditions are 45 kpa, 92 percent quality, and 50 m/s. the mass flow rate of the steam is 20 kg/s. determine: a. the change in the specific kinetic energy, in kj/kg. b. the power output, in mw. c. the turbine inlet area, in cm2.

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?