An aquarium has a circular viewing window with diameter $D=0\mathrm{.}8m$ facing seawater

$1\mathrm{.}03).$ The top of the window is $4\mathrm{.}0$ m below the water surface, and the window is angled at

$60$ with respect to the horizontal. Determine the hydrostatic force acting on the window, and

locate the corresponding center of pressure $($CP$).$