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  2. Earth mass - Wikipedia

    en.wikipedia.org/wiki/Earth_mass

    An Earth mass (denoted as M 🜨, M ♁ or M E, where 🜨 and ♁ are the astronomical symbols for Earth), is a unit of mass equal to the mass of the planet Earth. The current best estimate for the mass of Earth is M 🜨 = 5.9722 × 10 24 kg, with a relative uncertainty of 10 −4. [2] It is equivalent to an average density of 5515 kg/m 3.

  3. Orders of magnitude (mass) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(mass)

    DNA sequence of length 4.6 Mbp, the weight of the E. coli genome [27] 10 −17 ~1 × 10 −17 kg Vaccinia virus, a large virus [28] 1.1 × 10 −17 kg Mass equivalent of 1 joule [29] 10 −16: 3 × 10 −16 kg Prochlorococcus cyanobacteria, the smallest (and possibly most plentiful) [30] photosynthetic organism on Earth [31] [32] 10 −15 ...

  4. Earth - Wikipedia

    en.wikipedia.org/wiki/Earth

    The mass of the oceans is approximately 1.35 × 10 18 metric tons or about 1/4400 of Earth's total mass. The oceans cover an area of 361.8 million km 2 (139.7 million sq mi) with a mean depth of 3,682 m (12,080 ft), resulting in an estimated volume of 1.332 billion km 3 (320 million cu mi).

  5. Mass versus weight - Wikipedia

    en.wikipedia.org/wiki/Mass_versus_weight

    Usually, the relationship between mass and weight on Earth is highly proportional; objects that are a hundred times more massive than a one-liter bottle of soda almost always weigh a hundred times more—approximately 1,000 newtons, which is the weight one would expect on Earth from an object with a mass slightly greater than 100 kilograms.

  6. TNT equivalent - Wikipedia

    en.wikipedia.org/wiki/TNT_equivalent

    The ton of TNT is a unit of energy defined by convention to be 4.184 ... 3.086 × 10 9 foot-pounds ... (10 12) times the mass of the planet Earth.

  7. Planetary mass - Wikipedia

    en.wikipedia.org/wiki/Planetary_mass

    The choice of solar mass, M ☉, as the basic unit for planetary mass comes directly from the calculations used to determine planetary mass.In the most precise case, that of the Earth itself, the mass is known in terms of solar masses to twelve significant figures: the same mass, in terms of kilograms or other Earth-based units, is only known to five significant figures, which is less than a ...

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  9. Tonne - Wikipedia

    en.wikipedia.org/wiki/Tonne

    Megagram is the corresponding official SI unit with the same mass. Mg is distinct from mg, milligram. In pounds: Exactly ⁠ 1000 / 0.453 592 37 ⁠ pounds (lb) by definition of the pound, [17] or approximately 2 204.622 622 lb. [18] In short tons: Exactly ⁠ 1 / 0.907 184 74 ⁠ short tons (tn), or approximately 1.102 311 311 tn.