A nozzle is attached to the end of a garden hose to increase the exit velocity of the water. Consider a hose with inside diameter of 5/8 in. and a nozzle with exit diameter 1/3 of its entrance diameter. Determine the pressure (psia] at the hose inlet if the volumetric flow rate is 3.5 gpm. Assume steady, incompressible, frictionless flow. The ambient pressure is 14.7 psia.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.

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?