enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Gravitational potential - Wikipedia

    en.wikipedia.org/wiki/Gravitational_potential

    The absolute value of gravitational potential at a number of locations with regards to the gravitation from [clarification needed] the Earth, the Sun, and the Milky Way is given in the following table; i.e. an object at Earth's surface would need 60 MJ/kg to "leave" Earth's gravity field, another 900 MJ/kg to also leave the Sun's gravity field ...

  3. Gravity of Earth - Wikipedia

    en.wikipedia.org/wiki/Gravity_of_Earth

    The gravity of Earth, denoted by g, ... typically presented in the form of a spherical-harmonic expansion of the Earth's gravitational potential, ...

  4. Geopotential - Wikipedia

    en.wikipedia.org/wiki/Geopotential

    Geopotential is the potential of the Earth's gravity field.For convenience it is often defined as the negative of the potential energy per unit mass, so that the gravity vector is obtained as the gradient of the geopotential, without the negation.

  5. Geopotential spherical harmonic model - Wikipedia

    en.wikipedia.org/wiki/Geopotential_spherical...

    For this the gravitational force, i.e. the gradient of the potential, must be computed. Efficient recursive algorithms have been designed to compute the gravitational force for any N z {\displaystyle N_{z}} and N t {\displaystyle N_{t}} (the max degree of zonal and tesseral terms) and such algorithms are used in standard orbit propagation software.

  6. Gravitational energy - Wikipedia

    en.wikipedia.org/wiki/Gravitational_energy

    Image depicting Earth's gravitational field. Objects accelerate towards the Earth, thus losing their gravitational energy and transforming it into kinetic energy. Gravitational energy or gravitational potential energy is the potential energy a massive object has due to its position in a gravitational field.

  7. 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 ...

  8. Earth Gravitational Model - Wikipedia

    en.wikipedia.org/wiki/Earth_Gravitational_Model

    Earth Gravitational Model 2008 (EGM2008) GeographicLib provides a utility GeoidEval (with source code) to evaluate the geoid height for the EGM84, EGM96, and EGM2008 Earth gravity models. Here is an online version of GeoidEval.

  9. Geopotential height - Wikipedia

    en.wikipedia.org/wiki/Geopotential_height

    Geopotential height or geopotential altitude is a vertical coordinate referenced to Earth's mean sea level (assumed zero geopotential) that represents the work involved in lifting one unit of mass over one unit of length through a hypothetical space in which the acceleration of gravity is assumed constant. [1]