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  2. Center of mass - Wikipedia

    en.wikipedia.org/wiki/Center_of_mass

    The experimental determination of a body's center of mass makes use of gravity forces on the body and is based on the fact that the center of mass is the same as the center of gravity in the parallel gravity field near the earth's surface. The center of mass of a body with an axis of symmetry and constant density must lie on this axis.

  3. Gravity of Earth - Wikipedia

    en.wikipedia.org/wiki/Gravity_of_Earth

    The weight of an object on Earth's surface is the downwards force on that object, given by Newton's second law of motion, or F = m a (force = mass × acceleration). Gravitational acceleration contributes to the total gravity acceleration, but other factors, such as the rotation of Earth, also contribute, and, therefore, affect the weight of the ...

  4. Newton's law of universal gravitation - Wikipedia

    en.wikipedia.org/wiki/Newton's_law_of_universal...

    The theorem tells us how different parts of the mass distribution affect the gravitational force measured at a point located a distance r 0 from the center of the mass distribution: [13] The portion of the mass that is located at radii r < r 0 causes the same force at the radius r 0 as if all of the mass enclosed within a sphere of radius r 0 ...

  5. Physical geodesy - Wikipedia

    en.wikipedia.org/wiki/Physical_geodesy

    The weight of an object on Earth's surface is the downwards force on that object, given by Newton's second law of motion, or F = m a (force = mass × acceleration). Gravitational acceleration contributes to the total gravity acceleration, but other factors, such as the rotation of Earth, also contribute, and, therefore, affect the weight of the ...

  6. Moment of inertia factor - Wikipedia

    en.wikipedia.org/wiki/Moment_of_inertia_factor

    The Sun has by far the lowest moment of inertia factor value among Solar System bodies; it has by far the highest central density (162 g/cm 3, [3] [note 3] compared to ~13 for Earth [4] [5]) and a relatively low average density (1.41 g/cm 3 versus 5.5 for Earth).

  7. Here's a Map that Puts All Earth's Land Mass in the Shape of ...

    www.aol.com/lifestyle/2014-01-13-map-earths-land...

    Here's a Map that Puts All Earth's Land Mass in the Shape of a Chicken. Zach Everson. Updated September 22, 2016 at 2:13 PM. Getty Images.

  8. Centers of gravity in non-uniform fields - Wikipedia

    en.wikipedia.org/wiki/Centers_of_gravity_in_non...

    A common illustration concerns the Moon in the field of the Earth. Using the weighted-average definition, the Moon has a center of gravity that is lower (closer to the Earth) than its center of mass, because its lower portion is more strongly influenced by the Earth's gravity. [11]

  9. 2% of Earth's Mass May Be Debris From the Massive ... - AOL

    www.aol.com/2-earths-mass-may-debris-161400172.html

    4.5 billion years ago, Earth experienced a cataclysmic rendezvous with a planet named Theia. Evidence of the impact is still buried deep within the Earth. 2% of Earth's Mass May Be Debris From the ...