Solution Manual Heat And Mass Transfer Cengel 5th Edition Chapter 3 Direct

$\dot{Q}_{cond}=0.0006 \times 1005 \times (20-32)=-1.806W$

$\dot{Q}=h \pi D L(T_{s}-T_{\infty})$

$Nu_{D}=CRe_{D}^{m}Pr^{n}$