Start Date: 09/15/2019
Course Type: Common Course |
Course Link: https://www.coursera.org/learn/desarrollar-paginas-web-con-angular
Explore 1600+ online courses from top universities. Join Coursera today to learn data science, programming, business strategy, and more.Introducción a Angular y primera SPA
Programación Reactiva basada en Componentes
Conceptos avanzados e integración al stack MEAN
Componentes avanzados, testing automático y Trabajo Final
En la actualidad las páginas web se han transformado en aplicaciones en sí mismas, con más cantidad de componentes que nunca antes, y con más exigenci
Article | Example |
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Angular frequency | Angular frequency (or angular speed) is the magnitude of the vector quantity "angular velocity". The term angular frequency vector formula_1 is sometimes used as a synonym for the vector quantity angular velocity. |
Angular velocity | We can introduce here the angular velocity tensor associated to the angular speed formula_22: |
Angular momentum | angular momentum is proportional to moment of inertia formula_4 and angular speed formula_5, |
Angular momentum | The conservation of angular momentum explains the angular acceleration of an ice skater as she brings her arms and legs close to the vertical axis of rotation. By bringing part of the mass of her body closer to the axis she decreases her body's moment of inertia. Because angular momentum is the product of moment of inertia and angular velocity, if the angular momentum remains constant (is conserved), then the angular velocity (rotational speed) of the skater must increase. |
Angular momentum | or Angular momentum = moment of inertia × angular velocity, and its time derivative is |
Angular momentum | Angular momentum is additive; the total angular momentum of a system is the (pseudo)vector sum of the angular momenta. For continua or fields one uses integration. The total angular momentum of anything can always be split into the sum of two main components: "orbital" angular momentum about an axis outside the object, plus "spin" angular momentum through the centre of mass of the object. |
Angular aperture | The angular aperture of a lens is the angular size of the lens aperture as seen from the focal point: |
Angular artery | The angular artery is the terminal part of the facial artery; it ascends to the medial angle of the eye's orbit, imbedded in the fibers of the angular head of the Quadratus labii superioris, and accompanied by the angular vein. |
Angular momentum | or torque = moment of inertia × angular acceleration. Because angular acceleration is the time derivative of angular velocity, this is equivalent to formula_78 Rearranging into a form suitable for integration, formula_79 and formula_80 and integrating with respect to time, |
Angular unit | Not all angle measurements are angular units, for an angular measurement it is definitional that the angle addition postulate holds. |
Angular momentum | The total angular momentum of the collection of particles is the sum of the angular momentum of each particle, |
Angular acceleration | For all constant values of the torque, formula_10, of an object, the angular acceleration will also be constant. For this special case of constant angular acceleration, the above equation will produce a definitive, constant value for the angular acceleration: |
Angular velocity | Angular velocity can be defined as angular displacement for unit of time. If a point rotates with formula_8 in a frame formula_9 that itself rotates with an angular speed formula_10 with respect to an external frame formula_11, we can define the addition of formula_12 as the angular velocity vector of the point with respect to formula_11. |
Angular momentum | Therefore, a torque acting over time is equivalent to a change in angular momentum, known as "angular impulse", by analogy with impulse, which is defined as the change in translational momentum. The constant can be interpreted as the initial angular momentum of the body, before the torque began to act. In particular, if torque formula_82 then angular momentum formula_83 That is, if no torque acts upon a body, then its angular momentum remains constant. Conversely, |
Angular momentum | Finally, there is total angular momentum J, which combines both the spin and orbital angular momentum of all particles and fields. (For one particle, J = L + S.) Conservation of angular momentum applies to J, but not to L or S; for example, the spin–orbit interaction allows angular momentum to transfer back and forth between L and S, with the total remaining constant. Electrons and photons need not have integer-based values for total angular momentum, but can also have fractional values. |
Angular momentum | In modern (20th century) theoretical physics, angular momentum (not including any intrinsic angular momentum – see below) is described using a different formalism, instead of a classical pseudovector. In this formalism, angular momentum is the 2-form Noether charge associated with rotational invariance. As a result, angular momentum is not conserved for general curved spacetimes, unless it happens to be asymptotically rotationally invariant. |
Angular diameter | The angular diameter or apparent size is an angular measurement describing how large a sphere or circle appears from a given point of view. In the vision sciences it is called the visual angle and in optics it is the angular aperture (of a lens). The angular diameter can alternatively be thought of as the angle through which an eye or camera must rotate to look from one side of an apparent circle to the opposite side. Angular radius equals half the angular diameter. |
Angular momentum operator | There are several angular momentum operators: total angular momentum (usually denoted J), orbital angular momentum (usually denoted L), and spin angular momentum (spin for short, usually denoted S). The term "angular momentum operator" can (confusingly) refer to either the total or the orbital angular momentum. Total angular momentum is always conserved, see Noether's theorem. |
Angular distance | Given two angular positions, each specified by a right ascension (RA), formula_6; and declination (dec), formula_7, the angular distance between the two points can be calculated as, |
Angular momentum | gives the total angular momentum of the system of particles in terms of moment of inertia formula_4 and angular velocity formula_123, |