We'll consider Archimedes' principle in solving this problem.

According to Archimedes' principle, the upward buoyant force on any object immersed in a fluid is equal to the weight of the liquid displaced by the object.

What is the tension in the string in the figure?

In the figure, there is a block hanging off a string, completely immersed in ethyl alcohol.

it is 100 cm^{3} of aluminum (the block), and 2700 kg/mδ is the density of the aluminum.

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What scientific concept do you need to know in order to solve this problem?

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