Blood is flowing through a small blood vessel with a radius of 1.40 x 10-5m at an average speed of 2.75 x 10-3 m/s. If the blood vessel is 4.00 mm long, what is the magnitude of the pressure difference between one end of the blood vessel and the other? The viscosity of blood is 3.50 x 10-3 Ns/m^2. Give your answer in kPa to 2 decimal places. Do NOT include units in your answer.