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The square metre ( international spelling as used by the International Bureau of Weights and Measures) or square meter ( American spelling) is the unit of area in the International System of Units (SI) with symbol m2. [1] It is the area of a square with sides one metre in length.
Quadratmeter, auch Geviertmeter, ist eine Maßeinheit für den Flächeninhalt, die kohärente SI-Einheit der Fläche. 1 Quadratmeter ist der Flächeninhalt eines Quadrats der Seitenlänge 1 Meter. Das Einheitenzeichen für Quadratmeter ist m2. Das noch anzutreffende Zeichen qm ist ein seit den 1970er Jahren veraltetes, im SI ...
Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms. [2] : 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science . Quantum mechanics can describe many systems that ...
In Euclidean geometry, a square is a regular quadrilateral, which means that it has four sides of equal length and four equal angles (90- degree angles, π/2 radian angles, or right angles ). It can also be defined as a rectangle with two equal-length adjacent sides.
The hybrid QM/MM (quantum mechanics/molecular mechanics) approach is a molecular simulation method that combines the strengths of ab initio QM calculations (accuracy) and MM (speed) approaches, thus allowing for the study of chemical processes in solution and in proteins. The QM/MM approach was introduced in the 1976 paper of Warshel and Levitt.
Quartermaster is a military term, the meaning of which depends on the country and service. In land armies, a quartermaster is an officer who supervises logistics and requisitions, manages stores or barracks, and distributes supplies and provisions. In many navies, a quartermaster is a seaman or petty officer with responsibility for ...
A Wikipédia é um projeto de enciclopédia colaborativa, universal e multilíngue estabelecido na internet sob o princípio wiki. Tem como propósito fornecer um conteúdo livre, objetivo e verificável , que todos possam editar e melhorar. O projeto é definido pelos princípios fundadores e o conteúdo é disponibilizado sob a licença ...
