yongren11 yongren11

02-03-2024
Physics

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A hydrometer floats in water of density 1000kgm-3 with 6cm of its stem in the air. In oil of density 800kgm-3, it floats with 5cm of its stem in the air. In a certain liquid, it floats with 7cm of its stem in the air. What is the density of this liquid? [ans：1333kgm -3]

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