Problem 4 A capillary viscometer has been used to measure the viscosity of whole blood at 25.5 C. From the data given in the below figure for flow rate Q as a function of pressure gradient AP/L, plot viscosity as a function of the shear rate at the wall of the tube, r=R. Based on your analysis, is blood Newtonian and why? L is the length of the flow tube. 50 pts You may assume shear stress at the wall (r=R) using the following expression RAP 4Q = Y, = -, where YR 2L TR3 = 60 . H = 35.5% 50 O 40 R = 472 um T = 25.5C 1000 Q (cm/s) 30 O H = 40% . 20 On O 10 0 0 2 10 12 4 6 8 AP/L (mmH2O/cm)