A sphere of radius 1cm is made from silver. If the mass of the sphere is 33g, Find the density of silver. (Take `pi` =3.14)

An aluminium sphere of radius 12 cm is melted to make a cylinder of radius 8 cm. Find the height of the cylinder.

An aluminium sphere of radius 15 cm is melted to make a cylinder of radius 10 cm. Find the height of the cylinder.

A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6cm. Find the height of the cylinder.

The radius of sphere is 3.5 cm Find its surface area and volume .

A shotput is a metallic sphere of radius 4.9 cm .If the density of the metal is 7.8g. Per cm ^(3) find the mass of the shotput.

A smooth sphere of radius R is made to translate line with a constant acceleration a=g. A particle kept on the top of the sphere is released from there at zero velocity with respect to the sphere. Find the speed of the particle with respect to the sphere as a function of angle θ as it slides down.