Question
(a) What is the available energy content, in joules, of a battery that operates a 2.00-W electric clock for 18 months? (b) How long can a battery that can supply $8.00\times 10^{4}\textrm{ J}$ run a pocket calculator that consumes energy at the rate of $1.00\times 10^{-3}\textrm{ W}$?
1. $94.6\textrm{ MJ}$
2. $2.54 \textrm{ years}$
Solution Video