Answer
(a) $Q = 648,000~C$
(b) $E = 7.78\times 10^6~J$
(c) It takes 54.5 hours to drain the battery.
Work Step by Step
(a) We can calculate the charge:
$Q = 180.0~A\cdot h$
$Q = (180.0~C/s)(3600~s)$
$Q = 648,000~C$
(b) We can calculate the energy:
$E = V~Q$
$E = (12.0~V)(648,000~C)$
$E = 7.78\times 10^6~J$
(c) We can find the time it takes to drain the battery:
$t = \frac{180~A\cdot h}{3.30~A} = 54.5~hours$
It takes 54.5 hours to drain the battery.
