Power $**$

A battery operates a $2\mathrm{.}50$ W electric clock for $15\mathrm{.}0$ months.

Part $1$

What is the available energy content, in joules, of the battery?

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Correct answer, well done.

Marks for this submission: $1\mathrm{.}000/1\mathrm{.}000.$

Part $2$

How long can a battery that can supply $7\mathrm{.}90{10}^{4}J$ run a pocket calculator that consumes energy at the rate of $1\mathrm{.}60{10}^{-3}W?$