Posted by rick on .
A car battery has a rating of 200 ampere·hours (A·h). This rating is one indication of the total charge that the battery can provide to a circuit before failing.
What is the total charge (in coulombs) that this battery can provide?
Determine the maximum current that the battery can provide for 44 minutes.

physics 
Damon,
An amp is a coulomb/second
So a coulomb = amp second
200 amp hours * 3600 s/hr = 720,000 amp seconds = 720,000 coulombs
44 minutes = 2640 seconds
i * time = charge = 720,000 c
i = 720,000/2640
i = 273 amps
(actually it would probably burn up, but that is another problem :) 
physics 
DrBob222,
amperes x seconds = coulombs.
200 x 1 hour = rating.
200 x 60 minutes = rating.
44/60 of that = ??