Suppose that you find the volume of all the oceans to be 1.4×109km3 in a reference book. To find the mass, you can use the density of water,

Question

Suppose that you find the volume of all the oceans to be 1.4×109km3 in a reference book. To find the mass, you can use the density of water, also found in this reference book, but first you must convert the volume to cubic meters. What is this volume in cubic meters?

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Adela 4 years 2021-08-25T10:08:16+00:00 2 Answers 168 views 0

Answers ( )

  1. Dau
    0
    2021-08-25T10:09:55+00:00
    Reply

    Answer:

    V = 1.4\times 10^{18}\,m^{3},m = 1.435\times 10^{21}\,kg

    Explanation:

    The volume of all oceans is:

    V = (1.4\times 10^{9}\,km^{3})\cdot (\frac{1\times 10^{9}\,m^{3}}{1\,km^{3}} )

    V = 1.4\times 10^{18}\,m^{3}

    Ocean water has a density of 1025\,\frac{kg}{m^{3}}, the mass of all oceans is:

    m = (1025\,\frac{kg}{m^{3}} )\cdot (1.4\times 10^{18}\,m^{3})

    m = 1.435\times 10^{21}\,kg

  2. thienhuong
    0
    2021-08-25T10:10:04+00:00
    Reply

    Answer:

    Explanation:

    Volume of ocean = 1.4×10^9 km3

    To m^3,

    1.4 × 10^9 km^3 × (1000 m)^3/(1 km)^3

    = 1.4 × 10^18 m^3.

    Density of water = 1000 kg/m3

    Mass = density × volume

    = 1000 × 1.4 × 10^18

    = 1.4 × 10^21 kg.

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