Air (density 1.22 kg/m3 and dynamic viscosity 1.71.10-5 Pa.s) is located between two parallel infinite plates, the top plate is located 1 mm above the bottom plate. The top plate moves with a velocity of1.892 m/s, whereas the bottom plate is stationary. Verify that the flow is laminar and calculate the shear stress at the middle of the channel. O a. 0.03236 Pa O b. 0.9461 Pa O c. 1892 Pa O d. 0.04045 Pa