A large tank of height h is filled with a liquid of density ρ. A similar tank is half-filled with this liquid and other-halffi lled with another liquid of density 2ρ as shown. What will be the ratio of the instantaneous velocities of discharge through a small opening at the base of the tanks? (assume that the diameter of the opening is negligible compared to the height of the liquid column in either of the tanks)"

Hydrostatic Forces on Surfaces topics include: Hydrostatic force on plane area, pressure distribution in liquid, horizantal and inclined plane in liquid, total pressure and vertical plane surface. Hydrostatic forces are the result of a liquid's pressure loading on submerged surfaces. They are always perpendicular to the surface and their magnitude depends on the surface's depth, surface area, and fluid density. The formula for the hydrostatic force on a plane surface is: F = ∫ A P d A F = P c p · A  Where P c p is the pressure at the centroid of the plane surface.  The formula for the... Show more

Hydrostatic Forces on Surfaces topics include: Hydrostatic force on plane area, pressure distribution in liquid, horizantal and inclined plane in liquid, total pressure and vertical plane surface.

Hydrostatic forces are the result of a liquid's pressure loading on submerged surfaces. They are always perpendicular to the surface and their magnitude depends on the surface's depth, surface area, and fluid density.

The formula for the hydrostatic force on a plane surface is: F = ∫ A P d A
F = P c p · A 
Where P c p is the pressure at the centroid of the plane surface. 

The formula for the hydrostatic force on a curved surface is: F = ρgA(h + d) 
Where ρ is fluid density, g is acceleration due to gravity, A is the surface area, h is the depth of the fluid above the centroid of the area, and d is the distance to the centroid. 
Hydrostatic forces differ on horizontal, vertical, or inclined surfaces. They depend on the point's depth from the water's free surface.

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