Longitudinal wave(纵波) in a spring(弹簧) actually consist of a series of (一连串的) coupled harmonic oscillations(耦合简谐振荡), a conclusion that can be extended(推广) to longitudinal waves in all media(介质).相关知识点: 试题来源:
What do longitudinal waves consist of? Longitudinal waves have amplitude and wavelength. The amplitude of a longitudinal wave refers to the distance between the particles in the areas where it is compressed. Wavelength, on the other hand, refers to the distance between identical parts of a wave....
WANGLi-li , in Foundations of Stress Waves, 2007 6.2.2 Longitudinal visco-elastic waves propagating in Maxwell bars The longitudinal waves in Maxwell bars can be discussed in a similar way, for which the governing equations consist of Eqs. (2.12), (3.13), and (6.4), namely: (6.26) ...
Plane longitudinal waves propagating in a Slepyan-Palmov medium that consist of a carrier medium and an ensemble of nonlinear oscillators are considered. The system of equations of dynamics is reduced to one equation for the longitudinal displacement of the carrier medium. The propagation of harmonic...
longitudinalwavesmayconsistofsingleormultiplepulses.Alllongitudinalwavesconsistofregionsofhighandlowdensityknownascondensationsandrarefactionsthatoscillatearoundlocalpositionsofequilibriumparalleltothepathofenergytransfer.Soundwavesarelongitudinalwaves.Soundwavespropagatingthroughairconsistofaseriesofpressurefluctuationsaboveand...
The longitudinal bar has a lengthL, a widthaand a thicknessb(Fig. 13.12); the electric field is parallel to thelongitudinal axis. It is assumedthat simple harmoniclongitudinal wavespropagating along thex-direction have a displacement given by: ...
Zonal and meridional winds in the equatorial mesosphere and lower thermosphere (65–98 km) measured at two sites separated by 94° in longitude are used to study the zonal structure of planetary-scale waves. The data were obtained with MF radars located at Pontianak (0°N, 109°E)and Chris...
Step-by-Step Solution1. Definition of Waves: - Waves are disturbances that transfer energy from one place to another without the transfer of matter. They can be classified into two main types: transverse wav
Linear mixed models (LMMs) and structural equation models (SEMs) commonly used in longitudinal analysis rely on assumptions which are typically not met with lifespan data, in particular when the data consist of observations combined from multiple studies. While LMMs require a priori specification of...
The only longitudinal study (Leibovitz et al., 2021) used only two waves of data and did not separate between-person from within-person effects. Yet the processes of interest are specifically concerned with what happens at the within-person level, that is, whether the a...