祈恩 發問於 科學及數學數學 · 1 十年前

Maths...F.1 maths...5 識計

a container with uniform cross -sectional area of 160cm2 is filled with water to a certain level. If a metal cuboid of dimensions 10cm x 10cm x12 cm is placed inside the container and totally submerged in water, find the rise in the water level.

2 個解答

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  • 1 十年前
    最愛解答

    let the rise in water level be h

    the change in total volumn = the volumn of metal cuboid = 10 x 10 x 12 = 1200cm3

    uniform cross-sectional area x change in water level = change in volumn

    160cm2 x h = 1200cm3

    therefore h = 7.5cm

    hope it's gonna help~

  • 1 十年前

    The volume of the metal cuboid = 10 x 10 x 12 = 1200 cm3

    Let n be the rise in the water level

    160 n = 1200

    n = 7.5

    Therefore, the rise in the water level is 7.5 cm.

    2007-01-27 23:48:02 補充:

    volume = 體積

    2007-02-03 21:22:03 補充:

    volumn

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