Posted by Casablanca on Monday, March 12, 2012 at 8:50pm.
The ends of a water trough have the shape of the region bounded by the graphs of y = x2 and y = 4 with x and y both measured in feet. To what depth must the trough be filled with water so that the force exerted by the water on either end of the trough is 779.423 lb? (Water has a density of 62.5 lb per cubic foot).

Calculus (Definite Integrals  Fluid Pressure)  Harriet, Tuesday, March 15, 2016 at 6:38pm
I need help too!!!