The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of an $1000-F$ capacitor is $300V.($a$)$ Determine the energy that is used to produce the flash in this unit. $($b$)$ Assuming that the flash lasts for $5\mathrm{.}8ms,$ find the effective power or "wattage" of the flash.

$($a$)$ Number

Units

$($b$)$ Number

Units