Calculate the M.I. of a solid iron disc of radius 10 cm and thickness 5 cm. (Density of iron` (rho) = 7800 kgm^-3)`.

Solve the following problems : Calculate the relative density of iron if the density of water is 10^3 kg/m^3 and the density of iron is 7.85 x 10^3 kg/m^3.

The M.I. of a wheel of mass 8 kg and radius of gyration 25 cm is

How many solid cylinders of radius 10 cm and height 6 cm can be made by melting a soilid sphere of radius 30 cm?

Calculate the work done in blowing a soap bubble of radius 4 cm. The surface tension of soap solution is 25 xx 10^-3 N//m .

Practice problems : Calculate relative density of a metal having density 38.8 x 10^3 kg/m^3 , if density of water is 10^3 kg/m^3 .

Calculate the work done in blowing a soap bubble to a radius of 1 cm. The surface tension of soap solution is 2.5 xx 10^-2 N//m .

Calculate the work done in blowing a soap bubble to a radius of 1 cm. The surface tension of soap solution is 2.5 xx 10^(-2)N/m .