Prob. $1\mathrm{.}8\mathrm{.}2$ p$.$ IP$-9[$Ans: $4\mathrm{.}74$ psia$].$

$1\mathrm{.}8\mathrm{.}2$ WP When a fluid flows through a sharp bend, low pressures may develop in localized regions of the bend. Estimate the minimum absolute pressure $($in psi$)$ that can develop without causing cavitation if the fluid is water at $160F.$