$19\mathrm{.}16$ A $0\mathrm{.}2-m-$wide plate, $0\mathrm{.}8$ m long, is placed on the bottom of a shallow tank. The plate is heated, and maintained at a constant surface temperature of $60$ C $.$ Liquid water $12$ cm deep flows over the flat plate with bulk volumetric flow rate of $2\mathrm{.}4{10}^{-3}\frac{m^3}{s}.$ The bulk liquid water temperature may be assumed to remain constant at $20$ C as it flows along the length of the plate.

Thermophysical properties of water are given in the table below.

$\backslash$table$[[\backslash$table$[[$Temper$-],[$ature$]],\backslash$table$[[$Density$,],[(k\frac{g}{m^3})$