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.

Find the volume of sphere of radius 6.3 cm

The external and interenal diameter of a hollow metal spheres are 12cm and 10cm respectively. If the density of the metal be 4.9 gm/cc, then find the mass of the hollow sphere.

There is a cavity inside a piece of metal of mass 237.3g. The apparent weight of the piece of metal immersed completely in water is 192.1gxxg . If the density of the metal is 7.91g*cm^(-3) , then find the volume of the cavity.

If three smaller sphrer are made by melting a solid metal sphere of radius of 6cm. If the ratio of the radii of the smaller spheres be3:4:5, then find the diameters of three smaller spheres.

A metal with a molar mass of 75g*mol^(-1) crystallises in a cubic lattice structure with unit cells of an edge length of 5Å. If the density of the metal is 2g*cm^(-3) , calculate the radius of metal atom.

A sphere of radius 7 cm contains 56% iron. If the density of the sphere is 1.4g/ cm^(3) , then the approximate amount of iron present is-

Is it possible for a metal sphere of radius 1 cm to hold a charge of 1C ?

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.

How many metal sphere of radius 5 mm can be made by melting a metal sphere of radius 10 cm ?

A metal (atomic mass = 40) has a body centred cubic crystal structure. If the density of the metal is 4.50 g cm^(-3) , calculate the volume of the unit cell.