Aclosed, rigid tank is filled with water. initially, the tank holds 1.0 lb of saturated vapor and 6.0 lb of saturated liquid, each at 212°f. the water is heated until the tank contains only saturated vapor. kinetic and potential energy effects can be ignored determine the volume of the tank, in ft3, the temperature at the final state, in °f, and the heat transfer, in btu

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?