详细解释: 以下为句子列表: 英文: After the ball leaves, the racquet mass center (balance point) moves at a slower speed, and this means a loss of its kinetic energy (kinetic energy = 1/2 mass times velocity squared). 中文: 球离开之后,球拍开始减速,球拍减速的过程就是能量释放的过程,释放能...
The resulting streaming motions are supersonic, with a root-mean-squared (RMS) velocity of roughly 30 km s–1 at the end of the recombination epoch, and a coherence length of several comoving Mpc. At lower redshifts, the RMS velocity of the streaming motions declines as vRMS∝ (1 + z...
During clustering, nearest neighbors were selected based on their continuous kinematic phase: the phase angle of the right/non-paretic leg angle and angular velocity relative to vertical (Fig. 1A; right)34,39. We also used this phase variable to normalize stride progression. The last 3600 ...
The damping force (cdX/dt), which is the damping constant times velocity, acts opposite to the direction of the velocity. The spring force, K(X + h), acts in the direction opposite to the displacement. Using Newton's equation of motion, where ∑F = Ma, the sum of the forces acting...
In this case, the vortex mass is a proportionality coefficient between the moving vortex energy and its squared velocity and reflects the energy increase due to the vortex dynamic profile deformations. Usually the mass in magnetism is introduced by analogy to the effective mass of Bloch electrons ...
of the wind. To fully describe a force or acceleration, you need both the amount and the direction. For example, on a snowy day, you pull a child's sled in the forward direction with a force of 50 newtons, and it accelerates in the same direction at 0.5 meters per second squared. ...
First, it is possible to imagine the existence of objects with such a large mass that the escape velocity for objects to escape the gravitational attraction of such an object will be equal to the speed of light. Consequently, no information from this object will get to the outside world. ...
(b) Comparison of displacement error, the percentage difference between the measured and expected displacements, for mutual information (MI), normalized cross correlation (NCC), optical flow reconstruction (OFR) and sum of squared difference (SSD) for intracellular velocity computation on QPI data at...
Spatial omics technologies can reveal the molecular intricacy of the brain. While mass spectrometry imaging (MSI) provides spatial localization of compounds, comprehensive biochemical profiling at a brain-wide scale in three dimensions by MSI with single
velocity establishes the amount of energy or cold work delivered with each impact which in turn controls the surface profile and depth of the compressive layer. The shot particle energy is one-half of the particle mass times the particle velocity squared. The dependence of this kinetic energy ...