The sap in trees, which consists mainly of water in summer, rises in a system of capillaries of radius r = 2.5 × 10⁻⁵ m. The surface tension of sap is T = 7.28 × 10⁻² N/m and the angle of contact is 0°. Does surface tension alone account for the supply of water to the top of all trees?(density 10³ kg/m³)

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TextCapillary Rise Due to Surface Tension

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