(Solved): A flat plate of width w=1m is maintained at a uniform surface temperature of Ts=230C by usi ...

A flat plate of width $w=1\mathrm{m}$ is maintained at a uniform surface temperature of $T_s=230^{?}\mathrm{C}$ by using independently controlled heated segments, each of which is $L_h=50\mathrm{mm}$ long. If atmospheric air at $190^{?}\mathrm{C}$ flows over the plate at a velocity of $45\mathrm{m}/\mathrm{s}$, which of the first six segments has the minimum power requirement? What is this power requirement, in W?