The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potencial difference between the plates of a 750 uF capacitor is 330 V.
  1. Determine the energy that is used to produce the flash in this unit.
  2. Assuming that the flash last for 5.0x10-3 s, Find the effective "wattage" of the flash.