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27 September, 16:57

Austin performed an experiment. He put 100mL of vegetable oil (density 0.9 g/ml) in a graduated cylinder. He put a 100g mass of an unknown metal in to the oil and it sank while displacing 11 mL of oil. How much should the unknown metal weigh in the oil?

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  1. 27 September, 17:20
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    mass of displaced oil = 11 x. 9

    = 9.9 gm

    9.9 x 10⁻³ kg

    weight of displaced oil = 9.9 x 9.81 x 10⁻³ N

    =.097 N.

    buoyant force by oil =.097 N

    weight of unknown metal =.1 x 9.8

    =.98 N.

    weight of metal in oil =.98 -.097

    =.883 N.

    =
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