In a blood transfusion, blood flows from a bottle at atmospheric pressure into a patient’s vein in which the pressure is 20 mmHg higher than atmospheric. The bottle is 95 cm higher than the vein, and the needle into the vein has a length of 3.0 cm and an i.d. of 0.45 mm. How much blood flows into the vein each minute? For blood, η = 0.004 0 Pa·s and ρ = 1005 kg/m³.