25 As a transverse wave travels through a medium,the individual particles of the medium move(1) perpendicular to the direction of wave travel(2) parallel to the direction of wave travel(3) in circles(4) in ellipses 答案 1,下面哪一个是矢量?(1)电压(2)电场强度(3)电势差(4)电阻5,一个...
英语翻译28 Parallel wave fronts incident on an opening in abarrier are diffracted.For which combination ofwavelength and size of opening will diffractioneffects be greatest?(1) short wavelength and narrow opening(2) short wavelength and wide open
PROBLEM TO BE SOLVED: To provide a parallel operating method of sine-wave inverters and the sine-wave inverters permitting parallel operation which is simple in constitution and lower in cost, and in which replacement (it is called hot swap) during parallel operation can be carried out.シン ...
英语翻译A longitudinal wave causes the particles of a medium to move parallel to the direction of the wave.Figure 15-2b shows a longitudinal wave .Note that the motion of the spring is parallel to the direction in which the wave is moving .Thus t
If you’ve traveled lately at Metro Airport, you might have seen a display that almost looks like it might take you into a parallel universe. Okay, not quite. DETROIT –If you’ve traveled lately at Metro Airport, you might have seen a display that almost looks like it might take you ...
A. mg/(2k) B. mg/k C. 3mg/(2k) D. 2mg/k E. 3mg/k 6. X,YandZarethreespheresofthesamesizebutwithmassesm,mand2mrespectively,lyingonasmoothhorizontaltrackwithYandZincontactasshown.Xismovingtotherightwithvelocityuandmakesahead-oncollisionwithY.Ifallcollisionsareperfectlyelastic,whichofthefollowi...
The mattress is made up of two components (12, 14) with a wave-shaped cross-section which fit together to form a rectangular structure. Each rib (18) of the waves has 15 -35% of its width cut away, parallel to the surface which would cover it when the two sections are assembled, ...
distribution terminals close to the home end user, some modern telecommunication systems now use micro-wave and optic fibers as transmission mediums. In addition TCM (time compression multiplexing) is often used in optical transmission so that a signal optical fiber can carry communications in both ...
describes a scanning mechanism for a magnetoresistor which involves scanning in response to acoustic waves. This type of scanning control scans instantaneously across all of the segments of the head serially as the acoustic wave travels along the head rather than permitting selective actuation of a ...
wave traveling in a rope isdoubled,the speed of the wave in the rope will(1) decrease(2) increase(3) remain the same25 As a transverse wave travels through a mediumthe individual particles of the medium move(1) perpendicular to the direction of wave travel(2) parallel to the direction ...