What is co-efficient of viscosity (n)?

A sphere of radius 0.25mm and of density 9000kg/m^3 falls through an oil of co-efficient of viscosity 0.2 Ns/m^2 and of density 800kg/m^3 . Find the terminal velocity of the sphere.

What is viscosity? Define co-efficient of viscosity. What are its units dimensions?

What is co-efficient of restitution? A woodenball is dropped from a height of 2m. What is the height upto which the ball will rebound if the co-efficient of restitution is 0.5?

Using Stokes' Law show that the constant terminal velocity v of a sphere of radius r, density rho falling vertically under gravity through a viscous fluid of density sigma and co-efficient of viscosity eta is given by- v = (2/9).[{r^2g(rho - sigma)}/eta]

The dimensional formula for coefficient of viscosity

What is co-efficient of restitution. Proved that for elastic colision e = 1.

The dimension of co - efficient of viscocity is

How can you determine co-efficient of friciton by inclined plane method?

What is the coefficient of x in the expansion of (1+x)^n?

What is the unit of co-efficient of linear expansion.