Three uniform spheres each of mass m and radius R are kept in such a way that each touches the orher two. Find the magnitude of the gravitational force on any one of the spheres due to the other two.

Thee uniform spheres each having a mass M and raius a are kept in such a way that each touches the other two. Find the magnitude of the gravitational force on any of the spheres due to the other two.

Three uniform spheres each of mass m and diameter D are kept in such a way that each touches the other two, then magnitudes of the gravitational force on any one sphere due to the other two is

Three uniform spheres, each having a mass M=5kg and radius a=2.5m are kept in such a way that each touches the other two. Find the magnitude of the gravitational force in GN on any of the spheres due to the other two.

Three uniform spheres, A, B and C each of mass M and radius R are kept in such a way that each sphere touches the other two. What is the magnitude of the gravitational force acting on A due to B and C ?

Three identical spheres, each having a charge q and radius R. are kept in such a way that each touches the other two. The magnitude of the electric force on any sphere due to the other two is

Three circles each of radius 7cm are drawn in such a way that each of them touches the other two. Find the area enclosed between the circles.

Two metal spheres each of radius r are kept in contact with each other. If d is the density of the material of the sphere,then the gravitational force between those spheres is proportional to

Three rings, each of mass m and radius r , are so placed that they touch each other. Find the moment of inertia about the axis as shown in Fig.

A uniform rig of mas m and radius a is placed directly above a uniform sphre of mass M and of equyal radius. The centre of the ring is at a distance sqrt3 a from the centre of the sphere. Find the gravitational foerce exerted by the sphere on the ring.

A solid sphere of mass m and radius r is placed inside a hollow thin spherical shell of mass M and radius R as shown in the figure. A particle of mass m' is placed on the line joining the two centres at a distance x from the point of contact of the sphere and the shell. Find the magnitude of the resultant gravitational force on this particle due to the sphere and the shell if rltxlt2r