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vinirn
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Homework Statement
A beaker with water is in equilibrium with a certain weight in a balance. Then we tie a cord to a stone, and soak the stone in water, without touching the bottom. What will the balance read and why?
http://dl.getdropbox.com/u/698994/ilustra%20forums/experiencia%20empuxo.png
The Attempt at a Solution
The experience shows that the balance reads a increase of beaker's weight. I can't see how to employ the Arquimedes principle to solve the problem.
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