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The specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weight W divided by the volume V of a material: = / Equivalently, it may also be formulated as the product of density, ρ, and gravity acceleration, g: = Its unit of measurement in the International System of Units (SI) is newton per cubic metre (N/m 3), with ...
But since that weight depends on the local gravity, they now also needed a standard gravity. The 1887 CIPM meeting decided as follows: The value of this standard acceleration due to gravity is equal to the acceleration due to gravity at the International Bureau (alongside the Pavillon de Breteuil ) divided by 1.0003322, the theoretical ...
The first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 1 2 = 4.9 m. After two seconds it will have fallen 1/2 × 9.8 × 2 2 = 19.6 m; and so on. On the other hand, the penultimate equation becomes grossly inaccurate at great distances.
Since a pound of force (pound force) accelerates a pound of mass at 32.174 049 ft/s 2 (9.80665 m/s 2; the acceleration of gravity, g), we can scale down the unit of force to compensate, giving us one that accelerates 1 pound mass at 1 ft/s 2 rather than at 32.174 049 ft/s 2; and that is the poundal, which is approximately 1 ⁄ 32 pound force.
1.0 sq yd (0.84 m 2) square foot: sqft (ft2, sqfoot, foot2) Q857027: sq ft long code "sqfoot (foot2)" outputs square foot (and never feet) 1.0 sq ft (0.093 m 2) sqft m2; square inch: sqin Q1063786: sq in 1.0 sq in (6.5 cm 2) sqin cm2; sqin mm2; Maritime units: square nautical mile: sqnmi (nmi2) Q23931103: sq nmi 1.0 sq nmi (3.4 km 2; 1.3 sq mi ...
Happy Humphrey, the heaviest professional wrestler, weighing in at 410 kg (900 lb; 64 st 8 lb) at his peak. Israel Kamakawiwoʻole (1959–1997), Hawaiian singer whose weight peaked at 343 kg (756 lb; 54 st 0 lb). Paul Kimelman (born 1947), holder of Guinness World Record for the greatest weight-loss in the shortest amount of time (1982).
The slug is a derived unit of mass in a weight-based system of measures, most notably within the British Imperial measurement system and the United States customary measures system. Systems of measure either define mass and derive a force unit or define a base force and derive a mass unit [ 1 ] (cf. poundal , a derived unit of force in a mass ...
1 mile = 5280 feet and 1 hour = 3600 seconds; Next use the above equations to construct a fraction that has a value of unity and that contains units such that, when it is multiplied with the original physical value, will cancel the original units: