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Colliers de mode pour femmes méthode de gros pour mesurer la densité relative des gemmes

To determine the relative density of gemstones is to use Archimedesprinciple, and a precise balance can be used to determine the quality of gemstones and the buoyancy experienced. Par exemple, if a gemstone with unknown name has a mass of 5.2 grams in the air and 3.3 grams in water, its buoyancy is 5.2 […]