The Rotating-drum viscometer is shown in the plot. The SAE 30 oil is filled inside the cup. The reading of the dynamic viscosity from the viscometer is η = 0.35 N·s/m2. The angular speed of inner drum is ω = 53.57 rad/s. The diameter of the rotating drum is Ddrum = 0.56 m. The inner diameter of the cup is Dcup = 0.584 m. Determine the shear stress___________ Pa