An ideal Rankine cycle with reheat uses water as the working fluid. The conditions at the inlet to the first-stage turbine are p1 5 2500 lbf/in.2, T1 5 10008F. The steam is reheated at constant pressure p between the turbine stages to 10008F. The condenser pressure is 1 lbf/in.2 (a) If p/p1 5 0.2, determine the cycle thermal efficiency and the steam quality at the exit of the second-stage turbine.

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?