南通培训-A-level物理2010年真题之18
weight fixed stand fixed support vibration generator A vibration generator is attached to the wire near the clamped end. A stationary wave with one loop is produced. The frequency of the vibration generator is f. Which frequency should be used to produce a stationary wave with two loops? A 4...
s A 0 t 0 s B 0 t 0 s C 0 t 0 s D 0 t 0 25 In an experiment to determine the wavelength of sound in air, a stationary wave is set up in an air column. The distance between a node and an adjacent antinode is L. What is the wavelength of the sound? A 1 L B L C ...
For simultaneous LFP recordings from the LH, LPO and VTA, a custom stationary probe (four recording sites × eight shanks, NeuroNexus Technologies; Fig. 7a) was implanted along the line defined by the following coordinates: first shank (AP 0 mm, ML 1 mm, DV 5.4 mm) and last...
A multi-stage centrifugal pump with rotative impellers and stationary diffusers is used to lift the fluids through the oil well. The operation of a centrifugal pump is related to the law of conservation of energy. Initially, the torque from the electric motor is converted into rotational motion ...
Lott, F., The Reflection of a stationary Gravity Wave by a Viscous Boundary Layer, Journal of the Atmospheric Sciences, 64, 3363-3371, DOI: 10.1175/JAS4020.1, 2007.Lott, F., 2007: The reflection of a stationary gravity wave by a viscous boundary layer. J. Atmos. Sci., 139, 3363-...
Dataset A: simulated dataset wave_clus In this study, we used one common simulated dataset \(wave\_clus\) provided by Quiroga et al.19. In the simulation study, spike waveforms have a Poisson distribution of interspike intervals, and the noise is similar to the spikes in the power spectrum...
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The phase value of each measurement for the stationary microphone 1 (Micro 1) is denoted by φ0. At 36 evenly spaced measurement points along the r = 30 mm circle, the phase value for the moving microphone 2 (Micro 2) is denoted as φi (i = 1, 2, 3…36), as shown...
The study also presents findings in relation to the temporal and spatial variation in encountered wave height along ship routes at consecutive wave points spaced by the sailing distance in 30–120 min. It is shown that the variation can be large and, as such, the concept of “stationary ...