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。
声速是多少 声速是多少的英文翻译,声速是多少用英语怎么说,怎么读 读音:/shēng sù shì duō shǎo/ 声速是多少的英文翻译 网络What is the speed of sound 双语例句 单词专题
结果1 题目 25 What does the speed of sound in air depend on? A temperature of the air B pitch of the sound C loudness of the sound D distance between the source and receiver of the sound 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
求翻译:what is the speed of sound?是什么意思?待解决 悬赏分:1 - 离问题结束还有 what is the speed of sound?问题补充:匿名 2013-05-23 12:26:38 什么是 sound? 的速度热门同步练习册答案初中同步测控优化设计答案 长江作业本同步练习册答案 名校课堂助教型教辅答案 U计划学期系统复习答案 同步练习册...
What is the speed of sound: (a) in air? (b) in water? (c) in iron? 01:27 What name is gives to those aircrafts which fly at speeds greater than... 01:32 What is meant by supersonic speed? 01:51 State one observation from everyday life which shows that sound travel... 01:...
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1. What's the speed of sound at 2500 meters above sea level?相关知识点: 试题来源: 解析 285.3米/秒 声音速度受温度和气压影响。在2500米海拔,气压约为海平面的0.75倍,温度约为-2摄氏度。根据公式c = 331.5 + 0.6T,在-2摄氏度时,声音速度约为330.3米/秒。由于声音速度与气压平方根成正比,因此在...
预订What Is the Speed of Sound? Children’s Physics of Energy: 9781541904910 国外库房发货,通常付款后3-5周到货 作者:Baby Professor(作者)出版社:Baby Professor 手机专享价 ¥ 当当价 降价通知 ¥182.00 配送至 北京 至 北京市东城区 服务 由“中国进口图书旗舰店”发货,并提供售后服务。
aThe speed of sound in water is roughly one mile a second—slower than through land but faster than through air. What is most important, different layers of ocean water can act as channels for sounds, focusing them in the same way a stethoscope (听诊器) does when it carries faint noises...
The Speed of Sound: The More You Know (or What to Do about Incidental Findings)doi:10.1097/01.EEM.0000574832.85614.04.Butts, ChristineEmergency Medicine News