Consider a large vertical plate with a uniform surface temperature of $130$C suspended in a quiescent

air at $25$C and atmospheric pressure.

$($a$)$ Estimate the boundary layer thickness at a location $0\mathrm{.}25$ m measured from the lower edge $($Hint:

use Fig. $9\mathrm{.}4$ as the source, and evaluate the thickness at $=5).$

$($b$)$ What is the maximum velocity in the boundary layer at this location?

$($c$)$ Using the similarity solution result, Equation $9\mathrm{.}19,$ determine the heat transfer coefficient $0\mathrm{.}25$ m

from the lower edge.

$($d$)$ At what location on the plate measured from the low edge will the boundary layer become

turbulent?