There is a concentric hole of radius R in a solid sphere of radius 2R. Mass of the remaining portional is M. What is the gravitational potential at centre?

What is the volume of a solid sphere of radius 2R?

A spherical hole is made in a solid sphere of radius R. The mass of the sphere before hollowing was M. The gravitational field at the centre of the hole due to the remaining mass is

A spherical hole is made in a solid sphere of radius R. The mass of the sphere before hollowing was M. The gravitational field at the centre of the hole due to the remaining mass is

From a disc of radius r_(1) , a concentric disc of radius r_(2) is removed . The mass of the remaining portion is m . Find the M.I. of the remaining about an axis passing through the center of mass and perpendicular to the plane.

Two concentric shells have masses M and m and their radii are R and r , respectively, where R gt r . What is the gravitational potential at their common centre?

Two concentric shells have masses M and m and their radii are R and r , respectively, where R gt r . What is the gravitational potential at their common centre?

The moment of inertia of a solid sphere of mass M and radius R about the tangent is

From a solid sphere of mass M and radius R , a solid sphere of radius R//2 is removed as shown. Find gravitational force on mass m as shown