$22$:$21$ Sun Dec $15$

Incident solar heat flux of $700\frac{W}{m}2$ hits the surface of a solar collector with $2$ m length and $1\mathrm{.}2$ m width. The wind with a temperature of $T_{}=25C$ blows at $V=30\frac{km}{h}$ over the surface of the collector. The sky temperature can be approximated as Tsky $=-40$

$C.$ If the surface temperature of the collector is $T_s=35C$;

a$)$ The total rate of heat loss from the collector

b$)$ the collector efficiency

c$)$ the temperature rise of water as it flows through the collector

HELLO, PLEASE USE RE$=$VL$/$v and NU$=0\mathrm{.}037....$ and explain