Calculate the terminal velocity of air bubble of radius `10^-5` m rising in water of viscosity `10^-2 Nsm^-2` . Density of water `10^3 kg m^-3` and density of air is negligible as compared to water.

With what terminal velocity will an air bubble 0.8 m in diameter rise in a liquid of viscosity 0.15 Ns m^-2 and specific gravity 0.9 ? What is the terminal velocity fo the sam ebubble in water?

Relative density of gold is 19.3. The density of water is 1000 kg m^-3 . What is the density of gold in SI units.

In Millikan’s oil drop experiment, what is the terminal speed of an uncharged drop of radius 2.0xx 10^5 m and density 1.2xx 10^3 kg m^-3 . Take the viscosity of air at the temperature of the experiment to be 1.8xx 1 0^-5 Pa s. How much is the viscous force on the drop at that speed ? Neglect buoyancy of the drop due to air

A magnet weighs 75 g and its magnetic moment is 2xx10^-4 A m^2 . If the density of the material of the magnet is 7.5 xx 10^3 kg m^-3 , calculate the intensity of magnetisation.

The density of a 2.05 M acetic acid in water is 1.02gcm^-3 . Calculate the molality of the solution.

A stress of 10^7 N m^-2 is required to break a material of density 4 xx 10^4 kg m^-3 . Calculate the length of a wire of this material, which can break under its own weight.

The density of 10% by mass of KCI solution in water is 1 . 0 6 g mL^(-1) . Calculate molarity and molality of the solution