The experiment proves that sound is produced by ___. A. vibration B. pressure C. heat D. electricity 相关知识点: 试题来源: 解析 A。本题考查声音产生的原因,声音是由振动产生的。B 选项压力、C 选项热、D 选项电都不是声音产生的原因。反馈...
Sound is produced by the vibration of an object.答案: 正确 点击查看答案 你可能感兴趣的试题 单项选择题 A. B. C. D. 点击查看答案 问答题 试题正文扣件式钢管脚手架按承载能力可分为 答案: 正确答案:轻型—中型—重型 点击查看答案 版权...
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4. Vibration of the vocal cords results in a quality of speech sound called___C___.A. voiceless B. plosiveC. voicing D. nasals5. The greatest source of modification of the air stream is found in the___D___.A. oral cavity B. lungC. pharyngeal cavity D. nasal cavity6. Among the...
Answer to: In a sound wave in steel, what is vibrating? Give an example of a source of vibration for a sound wave in steel. By signing up, you'll...
The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and...M.P. Cartmell
a既然你知道地址就应该写信了 Since you knew the address should write a letter[translate] aAn approximate analytical solution is used to analyze the vibration and sound radiation from axially-stiffened finite cylindrical shells. The method can be conveniently used to study the acoustic radiation mechanis...
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By introducing an important modification into Vlasov theory [1], a general displacement variational method is proposed for free vibration analysis of thin ... WY Li,WK Ho - 《Journal of Sound & Vibration》 被引量: 23发表: 1995年 Studies on the Sound and Vibration of a Ball Screw : Sound...
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