Air is flowing inside a circular pipe with a diameter of $40mm.$ if the flow average velocity is $10\frac{m}{m}in$ at standard temperature and pressure and $1$ atm$),$ what is the Reynolds number of the flow? Additionally, is the flow likely to be laminar or turbulent? The molar mass $M$ and viscosity $$ of air are $0\mathrm{.}029k\frac{g}{m}ol$ and $0\mathrm{.}018cP$ respectively.