The relationship between stress and the shear strain rate for a pseudoplastic fluid (see Prob.

The relationship between stress τ and the shear strain rate γ for a pseudoplastic fluid (see Prob. 20.51) can be expressed by the equation τ = μγⁿ. The following data comes from a 0.5% hydroxethylcellulose in water solution. Using a power-law fit, find the values of μ and n.

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90 Shear strain rate y, 1/s Stress t, N/m? 50 70 110 90 130 7.48 8.59 9.19 10.21 6.01