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the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. degree (°) ∠ BAC. extensive, scalar. Luminous intensity. Iv. Wavelength - weighted power of emitted light per unit solid angle. candela (cd) J.
SI derived units are units of measurement derived from the seven SI base units specified by the International System of Units (SI). They can be expressed as a product (or ratio) of one or more of the base units, possibly scaled by an appropriate power of exponentiation (see: Buckingham π theorem ). Some are dimensionless, as when the units ...
2 according to the 3-center-4-electron bond model. Noble gas compounds such as xenon difluoride (XeF 2) are considered to be hypervalent because they violate the octet rule. Bonding in such compounds can be explained using a three-center four-electron bond model. [66] [67] This model, first proposed in 1951, considers bonding of three collinear ...
This discrepancy became undesired and a unification between the chemistry and physics was necessary. [13] In the 1957 Paris meeting the Commission put forward a proposal for a carbon-12 scale. [ 14 ] The carbon-12 scale for atomic weights and nuclide masses was approved by IUPAP (1960) and IUPAC (1961) and it is still in use worldwide.
The definition of a free molecular flow depends on the distance scale under consideration. For example, in the interplanetary medium, the plasma is in a free molecular flow regime in scales less than 1 AU; thus, planets and moons are effectively under particle bombardment. However, on larger scales, fluid-like behavior is observed, because the ...
Food and Agriculture Organization. International Labour Organization. International Civil Aviation Organization. International Maritime Organization. International Telecommunication Union. Joint United Nations Programme on HIV/AIDS. United Nations Capital Development Fund. United Nations Human Rights Council (UNHRC)
In macroeconomics, the guns versus butter model is an example of a simple production–possibility frontier. It demonstrates the relationship between a nation's investment in defense and civilian goods. The "guns or butter" model is used generally as a simplification of national spending as a part of GDP. This may be seen as an analogy for ...
Dumping, in economics, is a form of predatory pricing, especially in the context of international trade. It occurs when manufacturers export a product to another country at a price below the normal price with an injuring effect. The objective of dumping is to increase market share in a foreign market by driving out competition and thereby ...