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The standard acceleration of gravity or standard acceleration of free fall, often called simply standard gravity and denoted by ɡ 0 or ɡ n, 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).
In SI units, this acceleration is expressed in metres per second squared (in symbols, m/s 2 or m·s −2) or equivalently in newtons per kilogram (N/kg or N·kg −1). Near Earth's surface, the acceleration due to gravity, accurate to 2 significant figures, is 9.8 m/s 2 (32 ft/s 2).
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. [2] [3] 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), [4] depending on altitude, latitude, and longitude.
In unit systems where force is a derived unit, like in SI units, g c is equal to 1. In unit systems where force is a primary unit, like in imperial and US customary measurement systems , g c may or may not equal 1 depending on the units used, and value other than 1 may be required to obtain correct results. [ 2 ]
Glen Ridge is a borough in Essex County, in the U.S. state of New Jersey.As of the 2020 United States census, the borough's population was 7,802, [9] [10] an increase of 275 (+3.7%) from the 2010 census count of 7,527, [19] [20] which in turn reflected an increase of 256 (+3.5%) from the 7,271 counted in the 2000 census. [21]
Flemington is a borough in and the county seat of Hunterdon County, in the U.S. state of New Jersey. [18] Most of the borough is located in the Amwell Valley, a low-lying area of the Newark Basin, and the Raritan Valley, the South Branch of the Raritan River, which flows through the center of Flemington.
David Brearley (1745–1790), signer of the United States Constitution and Chief Justice of the New Jersey Supreme Court from 1779 to 1789 [30] George H. Brown (1810–1865), represented New Jersey's 4th congressional district in the United States House of Representatives from 1853 to 1855 [31] Scott Brunner (born 1957), former NFL quarterback [32]
An 1841 map of parts of Hudson and New York counties and the Hudson River. The township's written history began in 1609, when Henry Hudson, on his third voyage to the New World, sailed down what was later named the North River on the Half Moon and anchored in Weehawken Cove. [25]