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Q. What is the lift (in newtons) because of Bernoulli's principle on a wing of area 87 m^2 if the air passes over the top and bottom surfaces at speeds of 300 m/s and 180 m/s, respectively?

Q. A thick-walled hollow cylinder (inner radius=47 cm, outer radius=66 cm) rolls down a 7° incline. If it starts with a speed of 1.9-m/s, what is its speed after it has travelled 16 m? (m/s).

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