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The block of ice (temperature 0∘C) shown in the figure below is drawn over a level surface lubricated by a layer of water 0.10 mm thick. Determine the magnitude of the force F→ (in N ) needed to pull the block with a constant speed of 0.45 m/s. At 0∘C, the viscosity of water has the value η = 1.79×10−3 N⋅s/m2. N

The block of ice (temperature 0∘C) shown in the figure below is drawn over a level surface lubricated by a layer of water 0.10 mm thick. Determine the magnitude of the force F→ (in N ) needed to pull the block with a constant speed of 0.45 m/s. At 0∘C, the viscosity of water has the value η = 1.79×10−3 N⋅s/m2. N

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The block of ice (temperature 0 ∘ C ) shown in the figure below is drawn over a level surface lubricated by a layer of water 0.10 m m thick. Determine the magnitude of the force F → (in N ) needed to pull the block with a constant speed of 0.45 m / s . At 0 ∘ C , the viscosity of water has the value η = 1.79 × 10 − 3 N ⋅ s / m 2 . (i) N

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