A 270-kg object and a 570-kg object are separated by 4.40 m.
(a) Find the magnitude of the net gravitational force exerted by these objects on a 42.0-kg object placed midway between them.(answer in newtons)
(b) At what position (other than an infinitely remote one) can the 42.0-kg object be placed so as to experience a net force of zero from the other two objects?(answer in meters)