题目内容（请给出正确答案）

[主观题]

Which of the following statements is NOT necessarily true regarding mechanical waves？

A、They are sinusoidal in nature.

B、They carry energy.

C、They require a medium through which to propagate.

D、The wave speed depends on the properties of the medium in which they travel.

查看答案

如搜索结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装上学吧APP，拍照搜题省时又省心！

更多“Which of the following stateme…”相关的问题

第1题

Which of the following statements is TRUE?

A．Sound travels faster through cold water than warm water.

B．By transmitting sound waves, the scientists will be able to determine if our planet is warming up.

C．If sea animals are distressed by the sounds, they would swim away from the speaker.

D．There are signs that the animals are being harmed.

点击查看答案

第2题

Which of the following is not on the list of the countries hardest hit by the huge waves?

A．Indonesia

B．Sri Lanka

C．Malaysia

D．Thailand

点击查看答案

第3题

Which of the following is not on the list of the countries hardest hit by the huge waves?

A．Indonesia.

B．Sri Lanka.

C．Malaysia.

D．Thailand.

点击查看答案

第4题

According to the passage, which of the following statements best describes the relationship between secondary atmospheric circulations and jet streams?

A．Jet streams and baroclinic waves tend to interact most intensely with one another in the winter, then act independently in the summer.

B．Jet streams and baroclinic waves tend to exist at various points in the atmosphere in inversely proportional strength.

C．Jet streams and baroclinic waves may behave differently, but they issue from a common source and augment one another.

D．Jet streams tend to distribute kinetic energy in the atmosphere, and baroclinic waves relay this energy back to the jet stream.

E．Jet streams tend to be more affected by the presence of landmasses than do haroclinic waves.

点击查看答案

第5题

According to the passage, which of the following statements best describes the relationship between secondary atmospheric circulations and jet streams?

A．Jet streams and baroclinic waves tend to interact most intensely with one another in the winter, then act independently in the summer.

B．Jet streams and baroclinic waves tend to exist at various points in the atmosphere in inversely proportional strength.

C．Jet streams and baroclinic waves may behave differently, but they issue from a common source and augment one another.

D．Jet streams tend to distribute kinetic energy in the atmosphere, and baroclinic waves relay this energy back to the jet stream.

E．Jet streams tend to be more affected by the presence of landmasses than do haroclinic waves.

点击查看答案

第6题

Which of the following statements best describes a laser?

A．A device for stimulating atoms and molecules to emit light.

B．An atom in a high-energy state.

C．A technique for destroying atoms or molecules.

D．An instrument for measuring light waves.

点击查看答案

第7题

Which of the following is not mentioned as an effect of climate change?

A．It will generate more intense rainstorms.

B．It will generate more intense heat waves.

C．It will affect the growth of economy.

D．It will generate more intense droughts.

点击查看答案

第8题

Which of the following is true?

A．Phonetics is the study of pronunciation.

B．Phonetics is the scientific study of the movement of sound waves.

C．Phonetics is the scientific study of the sounds of language.

D．Phonetics is the scientific study of the organs of speech.

点击查看答案

第9题

According to the passage, which of the following is TRUE?

A．The deeper the sea, the stronger the waves.

B．The sea is always calm at a great depth.

C．Huge waves start from the depth of sea.

D．Shallow waters will not be affected by big waves.

点击查看答案

第10题

According to the passage, which of the following is TRUE?

A．The deeper the sea, the stronger the waves.

B．The sea is always calm at a great depth.

C．Huge waves start from the depth of sea.

D．Shallow waters will not be affected by big waves.

点击查看答案

谢谢您的反馈

您认为本题答案有误，我们将认真、仔细核查，
如果您知道正确答案，欢迎您来纠错

开始纠错>>>

警告：系统检测到您的账号存在安全风险

为了保护您的账号安全，请在“上学吧”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！

微信搜一搜

上学吧

点击打开微信

警告：系统检测到您的账号存在安全风险

抱歉，您的账号因涉嫌违反上学吧购买须知被冻结。您可在“上学吧”微信公众号中的“官网服务”-“账号解封申请”申请解封，或联系客服。

微信搜一搜

上学吧

点击打开微信