When fluid of specific weight \(50 \mathrm{lb} / \mathrm{ft}^{3}\) flows in a 6-in.diameter pipeline, the frictional stress between fluid and pipe is \(0.5 \mathrm{psf}\). Calculate the head lost per foot of pipe. If the flow rate is \(2.0 \mathrm{cfs}\), how much power is lost per foot of pipe?