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27 February, 03:02

An unknown solid weighs 31.6 n. when submerged in water, its apparent weight is 19.8 n. what is the specific gravity of the unknown sample?

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  1. 27 February, 03:05
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    specific gravity of the unknown sample = 2.68

    Explanation:

    True weight of solid=31.6 N

    Apparent weight=19.8 N

    loss in weight = 31.6-19.8=11.8 N

    Loss in weight = weight of the liquid displaced

    so weight of water displaced = 11.8 N

    now specific gravity = weight of object / weight of liquid displaced

    specific gravity = 31.6/11.8

    specific gravity = 2.68
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