Physics - Ch 33A Test Your Knowledge: Fluid Statics (37 of 42) Capillary Action: Measuring

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What radius should the ring have for the surface tension of the water to keep the ring below the surface? (Neglect the weight of the wire.)

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The only thing I missed was taking the circumference twice . But I got it from your solution. thanks

gaurangagarwal
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Shouldn't the m in mg be not only the mass of the cork, but also the mass of the string and the ring ?

carpediemyes