plase include all steps, unit converstion, equation used, or how equations used can be similar$2-$ The outside walls of a house are constructed of a $4-$in layer of brick $(k=0\mathrm{.}4Bt\frac{u}{h}.ft.F),\frac{1}{2}$ in of

celotex $(k=0\mathrm{.}03Bt\frac{u}{h}.ft.F),$ an air space $3$ in thick $(k=0\mathrm{.}015Bt\frac{u}{h}.ft.F),$ and $\frac{1}{4}$ in of wood

paneling $(k=0\mathrm{.}1Bt\frac{u}{h}.ft.F).$ Assume the air space transfers heat by conduction only. In a typical

summer day, the air temperatures outside and inside are $100$ and $70$ F $,$ respectively, and the

convective heat$-$transfer coefficients are $5$ and $2Bt\frac{u}{h}f{t}^{2}F,$ respectively. Determine the heat flux

$($note that this will be the energy loss through the wall$).[20$ points$]$