Air at $25C$ flows over a $4$ cm diameter, $1\mathrm{.}7$ m long pipe with a velocity of $4\frac{m}{s}.$ The surface temperature of the pipe is $-15C.$ Find the rate of heat transfer and drag force on the pipe.

$($For air use $k=0\mathrm{.}0240\frac{W}{m}-K,Pr=0\mathrm{.}735,v=1\mathrm{.}382{10}^{-5}\frac{m^2}{s})$