Head loss in capillary tube with Poiseuille's law

[gtchucker09]

Calculate the head loss per metre length of a capillary tube which has a bore radius of 0.45 mm when a fluid of density 850 kg/m3 and viscosity of 25 cP is flowing at a rate of 50 l/hr. State whether the flow is turbulent or laminar.

I have attached my attempt at a solution using poiseuille's law any feedback /clarification is greatly appreciated

 

[Chestermiller]

Your area is off by a factor of 1000. Try again.