A cylindrical vessel of radius 3 cm has at the bottom a horizontal capallary tube of length 20 cm and intrnal radius `0.4` mm. If the vessel is filled with water, find the time taken by it to empty one half of its contents. Given that the viscosity of water is `0.01` poise.

A vessel of cross-section 20xx10^(-4) square metres has a capillary tube of length 10 cm and internal radius 0.5 mm at the bottom. It is initially filled with water to a height of 20 cm above the capillary tube. Find the time taken by the vessel to expt one-half of its contents, given that the viscosity of water of 0.001 SI units. Density of water = 1000 kg per cubic metre. [Hint : See example 5]

A soap bubble of radius 4 cm and surface tension 30 dyne cm^(-1) is blown at the end of a tube of length 10 cm and intenal radius 0.2 cm If the viscosity of air is 1.89xx10^(-4) poise, Find the time taken by the bubble to be reduced ota radius of 2 cm.

A cylindrical vessel of radius R and height H and open at the top is completely filled with y . A small circular hole of radius r is made near the bottom of vessel . The time taken for 25 % of water to flow out is

A cylinder has a radius 20 cm. To what height should it be filled with water so that thrust in its walls is equal to that on its bottom? Find the mass of water filled in cylinder.

A cylindrical vessel of area of cross-section A and filled with liquid to a height of h_(1) has a capillary tube of length l and radius r protuding horizontally at its bottom. If the viscosity of liquyid is eta and density rho . Find the time in which the level of water in the vessel falls to h_(2) .

A cylindrical vessel of base radius 14 cm is filled with water to some height. If a rectangular solid of dimensions 22 cm xx 7 cm xx 5 cm is immersed in it what is the rise in the water level ?

A cylindrical vessel of radius 4 cm. contains water. A solid sphere of radius 3 cm is dipped into the water until it is completely immersed. The water level in the vessel will rise by

A cylindrical vessel of radius 4 cm contains water. A solid sphere of radius 3 cm is lowered into the water until it is completely immersed. The water level in the vessel will rise by