Difficult# Battery Voltage

APPH12-SEQWIZ

Two resistors are connected to a battery as shown below.

- The resistance of the first resistor is 9.0 ohms (${R}_{1}=\text{9.0}\text{ }\Omega$).
- Energy is dissipated by the the second resistor at the rate of 32 Joules/second (${P}_{2}$=32 Watts).
- Charge flows in the wire between resistor 1 and resistor 2 at the rate of 2.0 Coulombs/second ($I=$2.0 Amps).

What is the emf supplied by the battery (${V}_{B}$= ____)?