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What is the mass of a cubic meter of air at Mean Sea Level according to the International Standard Atmosphere (ISA)?

  • A

    12.25 kg

  • B

    1.225 kg

  • C

    0.1225 kg

  • D

    0.01225 kg

Density is typically quantified as kilograms of air per cubic meter (kg/m³) or grams of air per cubic meter (g/m³). In the International Standard Atmosphere (ISA) at mean sea level, air density is approximately 1.225 kg/m³ or 1225 g/m³. Density can also be represented in two additional forms: relative density and density altitude.

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