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  1. B

    Surface tension and work of a bubble or drop? S

    no help? :( please
  2. B

    Surface tension and work of a bubble or drop? S

    Homework Statement While a person breathes in, a typical alveolus expands from a radius of 0.13 x 10-3m to 0.15 x 10-3m. The alveolus behaves as though it has a single surface which is described by P =2γ/r ote the following. The gauge pressure in the alveoli of the lung is denoted Palv...