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Calculate the weight of the ball of a diameter 80mm which is just supported in vertical air-stream, which is flowing at a velocity of 7m/s
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Calculate the weight of the ball of a diameter 80mm which is just supported in vertical air-stream, which is flowing at a velocity of 7m/s. The density of the air is $1.25 kg/ m^3. \theta = 1.5 \times 10-4 m^2/sec.$
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