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gravitational force |
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gravitational force [‚grav·ə′tā·shən·əl ′fȯrs] (mechanics) The force on a particle due to its gravitational attraction to other particles. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The theory offers what may turn out to be a solution to the problem of quantum gravity: The gravitational force, in this scenario, is one more manifestation of vibrating strings. Previous Hubble studies had found that dark energy 5 billion years ago won the cosmic tug of war, turning the overall gravitational force from a pull to a push and revving up the universe's expansion. The same mechanism works with sports: no soccer player, for example, will calculate the weight of a ball, the inertial forces, the friction, the speed of wind and the influence of the gravitational force in order to shoot a goal. |
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