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the material or compound by which a wave is touring. Air is usually the medium for situations involving sound waves, but sound waves can journey by means of a myriad of distinctive elements, like h2o, metal, or
Sounds can be represented as a combination of their ingredient Sinusoidal waves of various frequencies. The underside waves have bigger frequencies than those over. The horizontal axis represents time. Though there are numerous complexities referring to the transmission of sounds, at the point of reception (i.
The Electrical power in a very sound wave is instantly connected with the depth. The units of intensity, W/m2, are similar to J/(sm2) or Vitality in joules for every 2nd for every sq. meter.
In such cases, we are able to see the bell ringing, but we simply cannot hear it. This is due to sound desires a medium to travel and it are not able to travel inside a vacuum. Therefore, we do not hear the bell ringing.
（个人或乐队的）音乐特色，音乐风格 The band's sound is a particular mixture of funk and rap. 这支乐队结合了乡土爵士乐和说唱乐的音乐风格，很有特色。
Sound—It is really almost impossible to assume a world without having it. It's most likely the first thing you practical experience once you wake up each morning—once you listen to birds chirping or your alarm clock bleeping away. Sound fills our days with enjoyment and indicating, when individuals speak to us, once we hear tunes, or once we hear appealing systems over the radio and television.
Robert Boyle (1627–1691). He completed a basic experiment that you have probably accomplished oneself at school: he Summer camp established an alarm clock ringing, put it inside of a substantial glass jar, and even though the clock was however ringing, sucked every one of the air out by using a pump.
的释义 浏览 soulfully soulfulness soulless soulmate sound sound card sound check sound influence sound engineer #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量
合理的，明智的;可靠的 She gave me some really sound tips. 她给了我一些非常好的建议。
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All objects can be sound resources that build sound in the identical way – by vibrating and transferring Individuals vibrations to an adjacent medium, like the air.
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You could be knowledgeable about the phenomenon of specific plane breaking the sound barrier. What This implies would be that the aircraft flies more quickly than the velocity of sound. At the moment it exceeds this pace, it produces a Science for kids in London sonic growth.