$4\mathrm{.}2$ Brine flood in a $1\mathrm{.}9in.$ long and $1\mathrm{.}5in.$ diameter core plug from the North Sea resulted in a stabilized pressure drop of $46\mathrm{.}05.$ The flood was carried out at $0\mathrm{.}05m\frac{L}{m}in$ with brine viscosity of $0\mathrm{.}443cP.$ Determine the absolute permeability of this plug in millidarcies.Can you include how we convert to millidarcies with the ansewer.