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## Homework Statement

A vessel of cross section 20 cm2 has at the bottom a horizontal capillary tube of length 10 cm and internal diameter 0.5 mm. It is initially filled with water to a height of 50 cm. Find the time taken to empty one half of the content in the vessel. Viscosity of water is 0.01 kgm-1s-1

## Homework Equations

Poiseuille Equation