Determine the magnitudes and directions of the currents in each resistor shown in Fig. below. The batteries have emfs of emf1 = 9.0 V and emf2 = 14.0 V and the resistors have values of R1 = 15 ohms, R2 = 20 ohms, and R3 = 27 ohms. Assume each battery has an internal resistance of 1.0 ohm.