A boy blows a soap bubble of radius R which floats in the air a few moments
Question:
A boy blows a soap bubble of radius R which floats in the air a few moments before breaking. What is the difference in pressure between the air inside the bubble and the air outside the bubble when
(a) R = 1 cm and
(b) R = 1 mm? The surface tension of the soap solution is = 25 dynes/cm. (Note that soap bubbles have two surfaces.
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