A Trough Cross-Section Is a 4-Foot-High and 2-Foot-Wide Rectangle

Multiple Choice

A trough cross-section is a 4-foot-high and 2-foot-wide rectangle. If the trough is filled with water of density 62.5 pounds per cubic foot, the force, in pounds, due to hydrostatic pressure on one end of the trough is
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A) 500
B) 650
C) 750
D) 180
E) 1,000