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2.48 A spherical soap bubble has an inside radius R, a film thickness t, and a surface tension o. Derive a formula for the pressure within the bubble relative to the outside atmospheric pressure. What is the pressure difference for a bubble with a 4-mm radius? Assume o is the same as for pure water.

2.48 A spherical soap bubble has an inside radius R, a film thickness t, and a surface tension o. Derive a formula for the pressure within the bubble relative to the outside atmospheric pressure. What is the pressure difference for a bubble with a 4-mm radius? Assume o is the same as for pure water.

Fundamentals of Geotechnical Engineering (MindTap Course List)
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter7: Seepage
Section: Chapter Questions
Problem 7.1P
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2.48 A spherical soap bubble has an inside radius R, a film thickness t, and a surface tension o. Derive a formula for the pressure within the bubble relative to the outside atmospheric pressure. What is the pressure difference for a bubble with a 4-mm radius? Assume o is the same as for pure water.
Transcribed Image Text:2.48 A spherical soap bubble has an inside radius R, a film thickness t, and a surface tension o. Derive a formula for the pressure within the bubble relative to the outside atmospheric pressure. What is the pressure difference for a bubble with a 4-mm radius? Assume o is the same as for pure water.
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