For a parallel plate arrangement of the type shown in Fig. 1.5 it is found that when the distance between plates is \(2 \mathrm{~mm}\), a shearing stress of \(150 \mathrm{~Pa}\) develops at the upper plate when it is pulled at a velocity of \(1 \mathrm{~m} / \mathrm{s}\). Determine the viscosity of the fluid between the plates. Express your answer in SI units.

Fig. 1.5

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b U B T i 1 1 ! ! ! ! !! B' P Fixed plate