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At a fixed point on the surface, the magnitude of Earth's gravity results from combined effect of gravitation and the centrifugal force from Earth's rotation. At different points on Earth's surface, the free fall acceleration ranges from 9.764 to 9.834 m/s 2 (32.03 to 32.26 ft/s 2), depending on altitude, latitude, and longitude.
In the standard inertial coordinates of special relativity, for unidirectional motion, proper acceleration is the rate of change of proper velocity with respect to coordinate time . In an inertial frame in which the object is momentarily at rest, the proper acceleration 3-vector, combined with a zero time-component, yields the object's four ...
The gravity of Earth, denoted by g, is the net acceleration that is imparted to objects due to the combined effect of gravitation (from mass distribution within Earth) and the centrifugal force (from the Earth's rotation ). [2] [3] It is a vector quantity, whose direction coincides with a plumb bob and strength or magnitude is given by the norm .
Standard gravity. The standard acceleration of gravity or standard acceleration of free fall, often called simply standard gravity and denoted by ɡ0 or ɡn, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is a constant defined by standard as 9.806 65 m/s 2 (about 32.174 05 ft/s 2 ).
The X Factor is a British television music competition to find new singing talent. The sixth series started on ITV on 22 August 2009 and was won by Joe McElderry on 13 December 2009. [1] Cheryl Cole emerged as the winning mentor for the second consecutive year, the first time in the show's history that a mentor has won back-to-back series. [2]
Thus, the Lambda-CDM model, the current standard model of cosmology which uses the FLRW metric, includes the cosmological constant, which is measured to be on the order of 10 −52 m −2. It may be expressed as 10 −35 s −2 (multiplying by c 2 ≈ 10 17 m 2 ⋅s −2) or as 10 −122 ℓ P −2 (where ℓ P is the Planck length).
The X Factor is a British television music competition that first aired in 2004. As of December 2017, there have been fourteen completed series. The final round of the competition features a number of solo singers or vocal groups: nine in series 1, twelve in series 2-6 and 10, 16 in series 7, 8, 11 14, and 15, and 13 in series 9, 12 and 13.
The third and final season of the American music competition television show The X Factor premiered on Fox on September 11, 2013, and ended on December 19, 2013. [1] This season was hosted by Mario Lopez. Simon Cowell and Demi Lovato returned to the judging panel, while Kelly Rowland and Paulina Rubio joined the panel as replacements for the ...
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