QUESTION $2$

A $1400ft$ long pipe delivers $140f\frac{t^3}{sec}.$ The roughness of the pipe is $0\mathrm{.}0046$ inches

and the diameter is $27$ inches. The pressure at the end of the pipe should be at least $30$

psi $($pound per square inches$).$ Assumptions are the flow is complete turbulence; the

pipe is horizontal; there is no minor loss; and, if needed, the speicific weight of water in

US unit is $62\mathrm{.}4lb\frac{f}{f}{t}^3.$ Compute the required pressure $($psi$)$ at the entrance of the

pipe. Write the answer up to two decimal places $($like $3\mathrm{.}21)$ without unit.