A rainstorm produced a 90-million-volt lightning bolt, but only for 0.004 seconds. The bolt struck a conducting pipe and the current passing through the pipe was 400 amperes. (a) What was the total energy contained in the lightning bolt? (b) What was the total power contained in the lightning bolt? (c) If all the energy in the lightning strike was stored and then later used to light a 75-watt bulb, then how long would the bulb stay lit?