With what terminal velocity will an air bubble 0.4 mm in diameter rise in a liquid of viscosity `0.1Ns//m^2` and specific gravity 0.9? density of air is `1.29 kg//m^3`?

A capillary tube 0.14mm in diameter has its lower end immersed in a liquid of surface tension 0.054 N//m . If the density of a liquid is 860 kg//m^3 , find the height to which the liquid rises in the tube.(Angle of contract of liquid with glass is 28^@ and g=9.8 m//s^2 ).

Air is blowing across the horizontal wings of an aeroplane in such a way that its speeds below and above the wings are 80 m/s and 120 m/s respectively. If the density of air is 1.2 kg/m^3 then the pressure difference between the lower and the upper sides of the wings will be

The terminal velocity of a water drop of radius 0.01 mm falling through air is 1.12 cm/s. If the density of air is neglected, the coefficient of viscosity of air is [density of water =10^(3) kg//m^(3), g=9.8m//s^(2)]

What will be the approximate terminal velocity of a rain drop of diamteter 1.8xx 10^(-3)m, when density of rain water ~~10^(3)kgm^(-3) and the co-efficient of viscosity of air ~~1.8xx10^(-5)Nsm^(-2) ? (Neglect buoyancy of air. )

find the terminal velocity of a steel ball 2mm in diameter falling through glycerine. Relative density of steel =8, relative density of glycerine =1.3 and viscosity of glycerine=8.3 poise.

A capillary tube of radius 0.5 mm is dipped vertically in a liquid of surface tension 0.04 N/m and relative density 0.8 g/cc . Calcukate the height of capillary rise , if the angle of contact is 10^@ .

The surface tension of water is 0.072 N/m. The height to which water will rise in a capillary tube of bore diameter 0.048 cm will be (Angle of contact of water is zero , acceleration due to gravity is 10 m//s^2 and density of water =1000 kg//m^3 ).

A spherical drop of oil falls at a constant speed of 4 cm//s in steady air. Calculate the radius of the drop. The density of the oil is 0.9 g//cm^3 , density of air is 1.0 g//cm^3 and the coefficient of viscosity of air is 1.8 xx 10^-4poise , ( g = 980 cm//s^2 )

The velocity of sound in air at 20^@ C and 1 atm pressure in 344.2 m//s . At 40^@C and 2 atm pressure, the velocity of sound in air is