4) The figure shows a with two ideal batteries having emfs &1 = 5.0V and E2 = 12V, the resistances all R = 2.00, and the potential is defined to be zero at the grounded point of the circuit. Determine the potentials at V, and V2. (Be sure to indicate the absolute potential at these points including the sign of the potential. In essence these potentials should be 182 reference with the respect to the zero potential at the grounded point indicated by the three horizontal lines in the V2 V1 upper right corner of the figure.)