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upward momentum───上升动力 angular diameters───[数]角直径 双语使用场景 The precise definition of theangular momentumof a body is complicated.───要给物体的角动量下精确的定义是困难的. Angular momentum is an axial vector quantity.───角动量是一种轴矢量. ...
Classically, angular momentum may be thought of as the Hamiltonian generator of rotations (Proposition 2.30). Angular momentum is a particularly useful concept when a system has rotational symmetry, since in that case the angular momentum is a conserved
5.2.2 Conservation of Angular Momentum The angular momentum is a vector defined as follows: (5.35)h→=r→×V→ The angular momentum vector is normal to the plane formed by the radius and velocity vectors and therefore normal to the plane of the orbit. If no external torque is applied, th...
Angular momentum Angular momentum is momentum rotating around an axis. It is also a vector having direction as well as magnitude. It is the product of inertia (of the mass) and its angular velocity. How far the mass is located from the axis critically affects angular momentum (Fig. 1.2.2...
circle. The angular momentum depends on the mass and velocity of the body, and on the radius of the circle that it is moving along. Because the velocity of a body moving in a circle is always changing (since velocity is speed and direction), its angular momentum is also always changing....
Orbital Angular Momentum (OAM) is a typical spatial mode of an Electro-Magnetic (EM) wave. Correctly detecting the OAM mode is fundamental and of foremost importance when applying the phenomenon to wireless transmission in free space. It is found that when rotating an OAM wave, a rotational Do...
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The total angular momentum, due to spin and rotational motion , is a useful quantity to keep track of because it is always unchanged. 总的角动量包括自旋和旋转运动,它是不变的一个非常有用的数据。 dictsearch.appspot.com 2. As a whole, the beam will therefore impart no total angular momentum...
A is m1v1=m1r1ω. The angular momentum is important. Consider a rigid body rotating about an axis O and having angular velocity ω at some instant. Let A be a particle of this body distance r1 from O and having linear velocity ...