Two point masses m are kept r distance apart. What will be the potential at 0.25r distance from any one mass towards the other mass ?

Two bodies of masses m and 2m are kept at distance r apart from each other. Then the value of G varies as

Two identical spherical masses are kept at some distance. Potential energy when a mass m is taken from the surface of one sphere to the other

Two identical spherical masses are kept at some distance. Potential energy when a mass m is taken from the surface of one sphere to the other

Two point masses m and M are separated bya distance L . The distance of the centre of mass of the system from m is

Two particle of masses m and 2m are at a distance 3r apart at the ends of a straight line AB . C is the centre of mass of the system. The magnitude of the gravitational force on a unit mass placed at C due to the masses is

Two point masses m and 4 m are seperated by a distance d on a line . A third point mass m_(0) is to be placed at a point on the line such that the net gravitational force on it zero . The distance of that point from the m mass is

Two point masses m and 4 m are seperated by a distance d on a line . A third point mass m_(0) is to be placed at a point on the line such that the net gravitational force on it zero . The distance of that point from the m mass is