What can be a good hypothesis for How fast are different liquids found in the home flow? In which the liquids are known to be Honey, Ketchup, Mustard, and Mayonnaise

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel