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A fluid with a density 0.87 times that of water climbs 1.5 mm up the sides of a tube. The fluid has a surface tension

A fluid with a density 0.87 times that of water climbs 1.5 mm up the sides of a tube. The fluid has a surface tension of 0.071 N/m, and forms contact angle of 11.0 o with the side of the tube. What is the radius of the tube? Give your answer in mm to 2 decimal places

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