Find the volume of the sphere given in the adjacent

Find the volume of the sphere given in the adjecent figures.

Volume of a sphere is

Find the Area of the shaded portion in the adjacent figure.

The radius of a sphere increases at the rate of 0.03 cm/sec. Find the rate of increase in the volume of the sphere when the radius is 5 cm.

Find the volume of a sphere of radius 2 cm.

Find the volume of sphere of radius 6.3 cm.

Find the volume of sphere if radius is 14cm.

Find the volume of sphere of radius 6.3 cm

Find the dimensions and the volume of the greatest cylinder that can be inscribed in a sphere of radius a.

Find the volume of a sphere of radius 21 cm. (Take pi =22/7)