Problem 2 (25 Marks) The viscosity data below is for a typical shear-thinning polymer (HDPE EMN 885 Philips Petroleum). Plot the data provided in the table on a log scale for both axes and then fit the following constitutive equations to the data: Power-law equation, n=m: jn-1 (has two fitted constants m and n); and {Note: you can linearize the power law equation to In n = ln m + (n 1) In to do the fitting} Carreau-Yasuda equation, n = 7. [1 + ( y)^] 2 , (has three fitted constants) n-1 a) Provide the fitted coefficients for each fitted equation and plot that equation on the same graph as the viscosity data for 170C. Note that 'n' must be 0<>