The dipole moment of a dipole in a 300 NC electric field is initially perpendicular to the field but it rotates o is in the same direction as the field. If the moment has a magnitude of 2x10^-9 Cm the work done by the field is

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.