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15 February, 07:34

Iron has density of 7.9g/cm3. What is the mass of a cube with the length of one side equal to 1.64x10squared cm3?

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  1. 15 February, 11:13
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    Given dа ta:

    Density of iron (Fe) = 7.9 g/cm3

    Length of one side of the iron cube = 1.64 * 10^2 cm

    Now, the volume (V) of a cube in which the length of the side is 'a' cm is given as:

    V = a^3

    Volume of iron cube = (1.64 * 10^2 cm) ^3 = 4.41 * 10^6 cm3

    The density (D) of an object of mass (m) and volume (V) is given as:

    D = m/V

    or, m = D*V

    Therefore, mass of iron cube = 7.9 g/cm3 * 4.41 * 10^6 cm3

    = 34.84 * 10^6 g
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