A fluid flowing through a tube of diameter $4mm$ and length $2m,$ has kinematic viscosity of $2{10}^{-6}\frac{m^2}{s},$ and a velocity of $0\mathrm{.}1\frac{m}{s}.$

Determine

$($A$)$ if the flow is laminar or turbulent

$(0\mathrm{.}5$ point$)$

$($B$)$ the friction factor $f$

$(1$ point$)$

$($C$)$ the friction head loss $h_f$

$(1$ point$)$