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The gram (originally gramme; [1] SI unit symbol g) is a unit of mass in the International System of Units (SI) equal to one thousandth of a kilogram.. Originally defined as of 1795 as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre [1 cm 3], and at the temperature of melting ice", [2] the defining temperature (≈0 °C) was later changed to 4 ...
10 −1 g dg decigram 10 1 g dag decagram 10 −2 g cg: centigram: 10 2 g hg hectogram 10 −3 g mg: milligram: 10 3 g kg: kilogram: 10 −6 g μg: microgram (mcg) 10 6 g Mg megagram 10 −9 g ng: nanogram: 10 9 g Gg gigagram 10 −12 g pg picogram 10 12 g Tg teragram 10 −15 g fg femtogram 10 15 g Pg petagram 10 −18 g ag attogram 10 18 g Eg ...
Although there are examples to the contrary, it should be stressed that the commonly used "units" of % w/v are grams per millilitre (g/mL). 1% m/v solutions are sometimes thought of as being gram/100 mL but this detracts from the fact that % m/v is g/mL; 1 g of water has a volume of approximately 1 mL (at standard temperature and pressure) and ...
W/K L 2 M T −3 Θ −1: extensive Thermal conductivity: λ: Measure for the ease with which a material conducts heat W/(m⋅K) L M T −3 Θ −1: intensive Thermal resistance R: Measure for the ease with which an object resists conduction of heat K/W L −2 M −1 T 3 Θ: extensive Thermal resistivity R λ: Measure for the ease with which a ...
It is a constant defined by standard as 9.806 65 m/s 2 (about 32.174 05 ft/s 2). This value was established by the third General Conference on Weights and Measures (1901, CR 70) and used to define the standard weight of an object as the product of its mass and this nominal acceleration.
1 g: Saturn V Moon rocket just after launch and the gravity of Neptune where atmospheric pressure is about Earth's 1.14 g: Bugatti Veyron from 0 to 100 km/h in 2.4 s 1.55 g [b] Gravitron amusement ride 2.5–3 g: Gravity of Jupiter at its mid-latitudes and where atmospheric pressure is about Earth's 2.528 g
The gravitational constant appears in the Einstein field equations of general relativity, [4] [5] + =, where G μν is the Einstein tensor (not the gravitational constant despite the use of G), Λ is the cosmological constant, g μν is the metric tensor, T μν is the stress–energy tensor, and κ is the Einstein gravitational constant, a ...
≈ 999.972 kg/m 3 × 1 ft × g 0: ≈ 2.988 98 × 10 3 Pa [33] inch of mercury (conventional) inHg ≡ 13 595.1 kg/m 3 × 1 in × g 0: ≈ 3.386 389 × 10 3 Pa [33] inch of water (39.2 °F) inH 2 O ≈ 999.972 kg/m 3 × 1 in × g 0: ≈ 249.082 Pa [33] kilogram-force per square millimetre: kgf/mm 2: ≡ 1 kgf/mm 2 = 9.806 65 × 10 6 Pa [33 ...