(II) The surface tension of a liquid can be determined by measuring the force F needed to just lift a circular plat- inum ring of radius r from the surface of the liquid. (a) Find a formula for y in terms of F and r. (b) At 30°C, if F = 6.20 × 10-³ N and r = 2.9 cm, calculate Y for the tested liquid.

(II) The surface tension of a liquid can be determined by measuring the force F needed to just lift a circular plat- inum ring of radius r from the surface of the liquid. (a) Find a formula for y in terms of F and r. (b) At 30°C, if F = 6.20 × 10-³ N and r = 2.9 cm, calculate Y for the tested liquid.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter14: Fluid Mechanics

Section: Chapter Questions

Problem 93P: A spherical particle falling at a terminal speed in a liquid must have the gravitational force...

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