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19 July, 16:18

A graduated cylinder has a mass of 50g when empty. when 30 mL of water is added, the graduated cylinder has a mass of 120g. if a rock is added to the graduated cylinder, the water level rises to 75mL and the total mass is now 250g. what is the density of the rock?

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  1. 19 July, 18:16
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    D=M/V

    M=250G-120G=130G

    V=75ML-30ML=45ML

    D=130/45=2.89g/ml
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