A solid sphere, of radius R acquires a terminal velocity ` v_1 ` when falling (due to gravity) through a viscous fluid having a coefficient of viscosity ` eta ` he sphere is broken into 27 identical solid spheres. If each of these spheres acquires a terminal velocity ` v _2 ` when falling through the same fluid, the ratio ` (v_1//v_2 ) ` equals:

A solid sphere, of radius R acquires a terminal velocity v_(1) when falling (due to gravity) through a viscous fluid having a coefficient of viscosity h. The sphere is broken into 27 identical solid spheres. If each of these spheres acquires a terminal velocity, v_(2) , when falling through the same fluid, the ratio (v_(1)//v_(2)) equal 9/x . Find the value of x.

Derive an expression for terminal velocity of the sphere falling under gravity through a viscous medium.

Derive an expression for terminal velocity of solid falling through viscous fluid.

A solid sphere falls with a terminal velocity v in air .If it is allowed to fall in vaccum,

A solid sphere falls with a terminal velocity v in air .If it is allowed to fall in vaccum,

Using dimensions show that the viscous force acting on a glass sphere falling through a highly viscous liquid of coefficient of viscosity eta is Fprop eta av where a is the radius of the sphere and v its terminal velocity.

The terminal velocity of a sphere of radius R, falling in a viscous fluid, is proportional to

The terminal velocity of a sphere of radius R, falling in a viscous fluid, is proportional to