Which of the following is true about the speed of light?

A) It depends on the wavelength
B) In a vacuum, it is a constant value that does not depend on the observer.
C) It is slowest in a vacuum unless an observer is moving towards the source.
D) In a vacuum, it varies depending on the color of the light.

Answers

Answer 1
Answer: B) In a vacuum, it is a constant value that does not depend on the observer.
Hope this helps!
Answer 2

The statement which is true about the speed of light is in a vacuum, it is a constant value that does not depend on the observer. Thus the correct answer is B.

What is the speed of light?

The speed of light is determined by the time taken by light to travel from different objects. The speed of light is 299 792 458 m / s.

The motion of the observer has no effect on the speed of light. The speed of light is constant irrespective of time or location. Neither the frequency nor the wavelength affects the speed of light.

Therefore, option B In a vacuum is a constant value that does not depend on the observer is the appropriate answer.

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Related Questions

**PLEASE HELP**

The American Revolution took place for many reasons. Which of these was a main reason for the American Revolution?

A) Colonists were divided about the issue of slavery.
B) Some colonists had come up with a plot to assassinate King George III.

C) Some colonies had decided to become part of the French colonies in North America.
D) Colonists had no representation in Parliament but they were being taxed by Parliament

Answers

Answer:

D.) Colonists had no representation in Parliament but they were being taxed by the Parliament

Explanation:

The American colonies were being forced to pay more money to someone that they couldn't even stand up against. Answer A is to the Civil War, I'm sure many wanted to mercilessly kill King George, but no one ever did, and no one ever became part of France, we just allied with them.

Answer:

i think it is A

Explanation:

Write three questions on how Christianity spread through Europe.

Answers

Answer:

Here you go

Explanation:

How does Christianity spread?

What factors helps Christianity grow and spread?

AND

Who spreads Christianity?

Answer:.

Explanation:

To identify which slaves had been purchased, slavers would do what to the slaves?
A. Put a tattoo on them
B. (blank for some reason)
C. Cut off their ears
D. placed a identifying chain around their necks

Answers

Answer:

D. placed an identifiable chain around their necks

A- benefits of a free enterprise economy
B- challenges of a communist economy
C- characteristics of a traditional economy
D-pros and cons of a socialist economy

Answers

D I think would be the answer

Arrange the events in chronological order.
John Adams’s presidency
signing of the Declaration of Independence
establishment of the first colony at Jamestown
the Reconstruction period
Andrew Jackson’s presidency

Answers

1st) Establishment of Jamestown
2nd) Declaration of Independence
3rd) John Adams
4th) Andrew Jackson
5th) Reconstruction Period

Read this excerpt from Common Sense.
According to Paine, what does the king in England
do? Check all of the boxes that apply. a) fight wars
b) give away land
c) worship his people
d) make the country poor

Answers

A, B, D.

Paine doesn't talk about the English king worshipping his people, but he does mention the king being ”worshipped into a bargain.” He does, however, say that the king of England starts wars, gives land away, and as a result, impoverishes his people.

According to Paine, what does the king in England

do?:

✔ A, B, D

Next Question:

✔ Negative

Is the phrase “A pretty business indeed” meant to be straightforward or sarcastic?

✔ sarcastic

Why would colonists find the second sentence offensive? Check all of the boxes that apply.

✔ B, C

Continue analyzing this passage from Common Sense.

Paine contrasts two types of people in sentence three.

“Honest man” is another way of saying

✔ Ordinary Person

“Crowned ruffian” is another way of saying

✔ bully king

In the first passage, Paine is arguing why monarchies are a poor form of government. Describe why Paine believes that monarchies are bad, using evidence from the passage.

Write three to four sentences.

The king spends time making war and giving out land, which makes the country poor.  The king makes a large salary and is head of the church while the country gets poorer.  America would be better off with one ordinary, honest man than with a brutal king.

Explanation:

Your welcome

Hang in there.... :P

What is the main purpose of the Northwest Ordinance? List all territories that became
states.

Answers

Answer:

Northwest Ordinances, also called Ordinances of 1784, 1785, and 1787, several ordinances enacted by the U.S. Congress for the purpose of establishing orderly and equitable procedures for the settlement and political incorporation of the Northwest Territory—i.e., that part of the American frontier lying west of Pennsylvania, north of the Ohio River, east of the Mississippi River, and south of the Great Lakes; this is generally the area known today as the American Midwest.

Explanation:

Hope this helps

Crown me as brainliest:)

Which of the following best summarizes Liu Bang’s approach to ruling China?
a.
weak and ineffective
c.
moderate and reasonable
b.
harsh and overly strict
d.
undisciplined and unfair

Answers

Answer:

C- moderate and reasonable

Explanation:

The House of Representatives and
the Senate could not agree on the
Wilmot Proviso due to the issue of
A. mining
B. trade
C. slavery

Answers

Answer:

slavery

Explanation:

In what ways was the school progressive and in what ways was it not?

Answers

Answer:

learning

Explanation:

the school is place where a person can acquire eduction

What are three facts or beliefs about monarchists\conservatives?

Answers

Answer: Monarchism is the advocacy of the system of monarchy or monarchical rule. A monarchist is an ... Monarchies have existed in some form since ancient Sumeria. Monarchy ... "Reinventing Canada: Stephen Harper's Conservative Revolution".

Explanation:

Conservatives are religious, believe in American traditions, and support limited government

What could every man do in Philadelphia?

work
go to school
vote
go to church

Answers

Answer:

i believe work

Explanation: even if the jobs were not so good like slaves it was still a job

3. Why were the Punic War so important for the development of the Roman Empire?

Answers

Answer: The Punic Wars were important the development of the Roman Empire because they acquired the island of Sicilly and Carthage by winning these wars, and these land helped them grow big and keep them strong.

Hope this helps you!

Which religion is virginia located

Answers

Answer: When Englishmen established their first permanent North American colony in Virginia in 1607, they carried their religion with them. The crown, the Virginia Company, and–in 1619–the House of Burgesses each confirmed the (Anglican) Church of England as the established church of the colony of Virginia.

Explanation:

What was the first governing document of the United States following the American Revolution called?

A. Articles of Confederation


B. Confederate Constitution


C. Confederation Articles


D. Articles of Impeachment

Answers

Answer:

Articles of Confederation

Explanation:

N/A

Answer:

Your answer is : A) Articles of Confederation

Explanation:

Hope this helped : )

How did Indus Valley cities differ from other early civilization cities?

They were surrounded by protective walls.


They had houses that were all one story.

They had planned, gridlike streets.


They had a large population.

Answers

Answer:

Option C- They had planned, gridlike streets.

Explanation:

Took the test and it was correct!

Indus Valley cities differ from other early civilization cities because they had planned, grid like streets. The appropriate response is option C.

What is Indus Valley cities ?

The Indus Valley Civilization, sometimes referred to as the Indus Civilization, was a Bronze Age civilization that flourished in the northwest of South Asia between 3300 and 1300 BCE and from 2600 to 1900 BCE in its mature form.

These cities are Dholavira, Kalibangan, Rakhigarhi, Rupar, and Lothal in contemporary India, and Harappa, Ganeriwala, and Mohenjo-daro in contemporary Pakistan. Over 1,052 cities and communities have been discovered in total, mostly around the Indus River and its tributaries.

Indus Valley cities have excellent organization. The rectangular cities of Mohenjo-Daro and Harapa were constructed of blocks that were split by a grid of streets that ran from north to south and from east to west. This common design may be found in many of the civilization's towns and villages.

Hence, the appropriate response is option C.

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In the early 1800s immigrants from Ireland settled in the north eastern United States resulting in

A) an increase in the strength of the union army
B) there election to many government positions in the region
C) calls for immigration restrictions by wealthy industrialist
D) their competition with free African-Americans from menial jobs

Answers

Answer: D

Because even though the newly-arrived immigrants had no legal or political rights, they were often willing to work for less money than American workers. Most industrial leaders readily accepted this situation and often pushed for further relaxing immigration requirements.

One purpose of the executive branch is to

Answers

Answer:

Make sure that the Laws set in place by our Government are followed.

Answer:

B. command the armed forces.

Explanation:


2. Why did the Renaissance begin in Italy?

A.remains of Greece & Rome, rise of middle class contributing to art & was
center of trade.

B.remains of Charlemagne's empire, avoided economic crisis and was center of trade

C.remains of Greece & Rome, had economic crisis and was center of trade

D.remains of Greece & Rome, had small cities, and was center of trade

Answers

Answer:

The Renaissance was a rebirth of ancient Greek and Roman thinking and styles, and both the Roman and Greek civilizations were Mediterranean cultures, as is Italy. The best single reason for Italy as the birthplace of the Renaissance was the concentration of wealth, power, and intellect in the Church.

Explanation:

that was googles answer because I wasn't sure if you meant the 12th century renaissance or 14th century one

What does seidman mean here? Why is this a problem?

Answers

I believe this could be correct if not, I will change it up!:)

which of these is a characteristic of the Inca civilization?

Answers

Emperors communicated using runners from the capital city of Cuzco.

The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of race, color, or previous condition of servitude."

- Fifteenth Amendment to the United States Constitution
This amendment was created primarily for the purpose of
A) punishing southern states.
B) avoiding another Civil War.
C) pardoning Confederate veterans.
D) granting former slaves suffrage.

Answers

Answer:

D) granting former slaves suffrage.

Explanation:

One purpose of the executive branch is to

Answers

Answer: Making sure that the laws are obeyed.

Explanation:

There are three types of Branches of Government and those are the Executive Branch, the Legislative Branch, and the Judicial Branch.

The main purpose of the Executive Branch is to make sure that the laws are obeyed and it refers to the laws of the United States where the president is considered as the head of the executive branch.

There is also the Vice President and the President is getting his help from him, heads of independent agencies, and also department heads.

i need this answer as soon as possible or i'll be grounded

Answers

Awnser;

Elijah has too many ideas in that paragraph. There are way too many details and there is no focus. He needs to decide what is the main focus is.

According to the US Constitution, a state can create legislation on issues that

Answers

Answer:

Explanation:

C.are neither assigned to the federal government nor denied to states" is the proper answer. The Constitution expressly states that laws not specifically reserved for the federal government can be enacted by the states.

What challenge did Klaus-Jurgen Warnick face after the reunification of Germany?
How was his problem resolved?

Answers

Answer:

Cookie

Explanation:

Okie

What was a goal of the First Continental Congress?

Answers

Answer:

The purpose of the Congress was to show support for Boston and to work out a unified approach to the British. On October 14, 1774, the First Continental Congress issued the Declaration of Colonial Rights and Grievances.

Explanation:

i hope this helps your welcome luv have a great day :)

Answer:

To find a solution to the conflicts with Great Britain

Explanation:

Got this right

how did islamic civilization spread encompass such as extensive empire

Answers

Answer:

Religious and Political Conquest

Explanation:

As with most any civilization, Islamic civilization was significantly spread through military power. Strong armies, as well as a strong Muslim belief in spreading the faith, led to the conquering of many surrounding areas and lands.

Please help me!! Please

Answers

Answer:

Hi

Explanation:

What was one of the major effects of the end of the Civil War in the Indian Territory? A. The Five Tribes were forced to assimilate to American lifestyles. B. The Five Tribes had to cede portions of their land to the Union to make room for railroads. C. The Five Tribes were forced to give up ranching in favor of small-scale farming. D. The Five Tribes had to send their leaders to Washington to be tried for treason. Please select the best answer from the choices provided A B C D

Answers

Answer:

B. The Five Tribes had to cede portions of their land to the Union to make room for railroads.

Explanation:

I just got it correct

Answer:

B.  The Five Tribes had to cede portions of their land to the Union to make room for railroads.

Explanation:

got it right edg 2021

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