A uniform sphere with mass 57.0kg is held with its center at the origin, and a second uniform sphere with mass 77.0kg is held with its center at the point x= 0, y = 3.00m.
Part A) What is the magnitude of the net gravitational force due to these objects on a third uniform sphere with mass 0.510kg placed at the point x= 4.00m, y = 0?
Part B) What is the direction of the net gravitational force due to these objects on a third uniform sphere with mass 0.510kg placed at the point x= 4.00m, y = 0?
Part C) Where, other than infinitely far away, could the third sphere be placed such that the net gravitational force acting on it from the other two spheres is equal to zero?