Calculate the mass of soil in an area of 7000m2, depth of 12cm and a bulk density of 1.4 g/cm3. Express the mass in Kg or Mg.?
回答 (1)
2017-10-02 2:39 pm
Volume of the soil
= (7000 × 100² cm²) × (12 cm)
= 8.4 × 10⁸ cm³
Mass of the soil
= (8.4 × 10⁸ cm³) × (1.4 g/cm³)
= 1.18 × 10⁹ g
= 1180 × 10⁶ g
= 1180 Mg
= (7000 × 100² cm²) × (12 cm)
= 8.4 × 10⁸ cm³
Mass of the soil
= (8.4 × 10⁸ cm³) × (1.4 g/cm³)
= 1.18 × 10⁹ g
= 1180 × 10⁶ g
= 1180 Mg
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原文連結 [永久失效]:
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