Step-by-Step Text Solution:1. Definition of Sound: - Sound is defined as a form of energy that is produced by vibrating objects. It travels through different mediums such as air, water, or solids.2. <
根据第三段Coral(珊瑚) intheoceanalsosendssoundwavestolead(带领) babycoraltosaferareastogrow.Babycoral "listens" forthesoundsandfindsitswaytotherightplace.Thisissurprisingascoraldoesn'thaveanyears! (海洋中的珊瑚也会发出声波,将小珊瑚带到更安全的地方生长。小珊瑚会"倾听"声音,并找到合适的地方。这令人...
Sound is produced by vibrations. What is the speed of sound in air? A. 340 meters per second. B. 340 kilometers per hour. C. 3400 meters per second. D. 3400 kilometers per hour. 相关知识点: 试题来源: 解析 A。解析:声音在空气中的传播速度是 340 米每秒。选项 B、C、D 速度错误。
A. Sound is produced by heat. B. Sound is produced by vibration. C. Sound is produced by electricity. D. Sound is produced by magnetism. 相关知识点: 试题来源: 解析 B。解析:“This experiment demonstrated that sound is produced by vibration.”表明声音是由振动产生的。反馈...
The second heart sound is produced View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board, Rajasthan Board, ...
Because of this linking the words in a sentence do not always sound the same as we they are said individually. Sound leaking is probably the biggest problem for learns of English. When they try to understand a native speakers words. If you recognize some the liking white living, you will ...
a医学成像原理 Medicine image formation principle [translate] aeasy buy 容易的购买 [translate] awhat is that sound 什么是那声音 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译 荷兰语翻译 瑞典语翻译 希腊语翻译 51La ...
In physics, sound is produced in the form of a pressure wave. When an object vibrates, it causes the surrounding air molecules to vibrate, initiating a chain reaction of sound wave vibrations throughout the medium. While the physiological definition includes a subject’s reception of sound, ...
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An unvoiced sound is produced without the vibration of the vocal cords. It's like the soft hiss of 's' or the crisp pop of 't' in speech. These sounds rely on breath and mouth shape to articulate meaning. Curious about how unvoiced sounds shape language? Discover their subtle power in...