A physics student took a solid sphere of density 2 g `cm^(-3)` and radius 3.5 cm and applied a force on the sphere. If an acceleration fo 1.5 `cm s^(-2)` is produced in it, find the amount of force applied on it.

An acceleration fo 5m//s^2 is produced by applying a force of 50 N on a body. Find the mass of the body.

A solid metallic cone of radius 2 cm and height 8 cm is melted into a sphere. Find the radius of sphere.

A solid metallic cone of radius 2 cm and height 8 cm is melted into a sphere. Find the radius of sphere.

If the distance between the centre of a gold sphere of radius 5mm and of a lead sphere of radius 11.5 cm is 15 cm and the force of gravitational attraction between them is 2.16xx10^(-4) dyn , find the value of G, the universal gravitational constant. Densities of gold and lead are 19.3g*cm^(-3) and 11.3 g*cm^(-3) respectively.

Three spheres of radii 3cm,4cm and 5cm are melted to form a new sphere.Find the radius of the new sphere.

Find the volume of a sphere of radius 3.5cm(pi=3.14)

Find the volume of a sphere of radius 3.5cm(pi=3.14)

Two solids A and B of density 2.5 g cm^(-3) and 0.80g cm^(-3) are placed in a liquid L of density 1.2 g cm^(-3) Which solid is likely to float and why?