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A square plate of 1 m side moves parallel to a second plate with velocity 4 ~m / s . A thin layer of water exist between plates. If the viscous force is 2 N and the coeff of viscosity is 0.01 poise then the distance between the plates in mmis.

Correct answer

2

Step-by-step solution

F = Av d ; d = A v ~F = 0.01 10⁻¹ 1^2 4 0.002 =2 ~m

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