QUESTION 4 A 0.5-mm-diameter glass tube is inserted into water at 20°C in a cup. The surface tension is 103kg/m³ and the acceleration due to gravity is 10 m/s². The contact angle can be take the capillary rise of water in the tube is 3.7 cm 7.4 cm 5.1 cm 9.3 cm

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Pressure and Stress