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  2. Gravity of Earth - Wikipedia

    en.wikipedia.org/wiki/Gravity_of_Earth

    Thus, the gravitational acceleration at this radius is [14] = (). where G is the gravitational constant and M(r) is the total mass enclosed within radius r. If the Earth had a constant density ρ, the mass would be M(r) = (4/3)πρr 3 and the dependence of gravity on depth would be

  3. Tidal force - Wikipedia

    en.wikipedia.org/wiki/Tidal_force

    For example, even though the Sun has a stronger overall gravitational pull on Earth, the Moon creates a larger tidal bulge because the Moon is closer. This difference is due to the way gravity weakens with distance: the Moon's closer proximity creates a steeper decline in its gravitational pull as you move across Earth (compared to the Sun's ...

  4. Newton's law of universal gravitation - Wikipedia

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

    Gravitational field strength within the Earth Gravity field near the surface of the Earth – an object is shown accelerating toward the surface If the bodies in question have spatial extent (as opposed to being point masses), then the gravitational force between them is calculated by summing the contributions of the notional point masses that ...

  5. Reaction (physics) - Wikipedia

    en.wikipedia.org/wiki/Reaction_(physics)

    The Earth, among other planets, orbits the Sun because the Sun exerts a gravitational pull that acts as a centripetal force, holding the Earth to it, which would otherwise go shooting off into space. If the Sun's pull is considered an action, then Earth simultaneously exerts a reaction as a gravitational pull on the Sun. Earth's pull has the ...

  6. Nasa makes history with closest-ever approach to Sun - AOL

    www.aol.com/news/nasa-makes-history-closest-ever...

    Parker's speed came from the immense gravitational pull it felt as it fell towards the Sun. [BBC] Dazzling cosmic displays on Earth are caused by the solar wind [PA Media]

  7. Gravitational acceleration - Wikipedia

    en.wikipedia.org/wiki/Gravitational_acceleration

    Vector field (blue) and its associated scalar potential field (red). Point P between earth and moon is the point of equilibrium. In physics, a gravitational field or gravitational acceleration field is a vector field used to explain the influences that a body extends into the space around itself. [6]

  8. Spacecraft attempts closest-ever approach to Sun - AOL

    www.aol.com/news/spacecraft-attempts-closest...

    Parker's speed comes from the immense gravitational pull it feels as it falls towards the Sun. [BBC] Dazzling cosmic displays on Earth are caused by the solar wind [PA Media]

  9. New study shows the Sun and Moon's pull may trigger San ... - AOL

    www.aol.com/news/2016-07-19-new-study-shows-the...

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