explain why refraction occurs at the boundary between two media.
A microscope is focused on a mark on a table. When the mark is covered by a plate of glass
3.00 cm thick, the microscope has to be raised 1.1 cm for the mark to be once more in focus
Calculate the refractive index of the glass block.​

Answers

Answer 1

Answer:Why does refraction occur at the boundary between two media? Refraction occurs at the boundary of two media when light travels from one medium into the other and its speed changes but its frequency remains the same. This is because the light rays leaving the straw change direction when they hit the surface between the liquid and the air.

Explanation:


Related Questions

While reading a scientific article, a class of fifth-grade students completed a series of Frayer models on unfamiliar vocabulary words they encountered. To complete a Frayer model, students write the vocabulary word in the center, and then fill the surrounding rectangles with the definition, pictures of examples and non-examples, and a sentence using the word. Each student completed a different number of Frayer models depending on how many new vocabulary words they learned from the article. This activity will improve students' vocabulary knowledge by:

Answers

Answer:

Providing a series of mnemonic devices to increase student retention of new words.

Explanation:

The students are trying to learn new vocabulary but they are unable to retain the new words. The students are learning new words by writing its definition and examples. This will create a visual impact for every word and retention would be easy. The student vocabulary knowledge can be improved by providing mnemonic devices.

"Explain the geographic context for the development of the Crusades."

Answers

Answer:

lslamic civilizations

Analyse the roles and responsibilities of media in reporting human rights
Violations. (Any four)​

Answers

Explanation:

The backbone of any democracy is an independent, professional and responsible media.

Their role is to inform, criticise and stimulate debate.

For the media to be credible it has to take responsibility for getting its facts right.

The exposing of social evils,casting couch and spreading social awareness like, about health, sanitation, education are the roles played by media.

In the United States, indigenous groups lost property, political rights, aspects of their culture, and often their lives because of invasion by Euro-Americans and others. The capitalist class acquired cheap labor and land through this government-sanctioned racial exploitation. The effects of this __________ are reflected today in the number of Native Americans who live on government reservations.

Answers

The correct answer to this open question is the following.

Unfortunately, you forgot to include the options for this question.

However, trying to help we can say the following.

In the United States, indigenous groups lost property, political rights, aspects of their culture, and often their lives because of invasion by Euro-Americans and others. The capitalist class acquired cheap labor and land through this government-sanctioned racial exploitation. The effects of this internal colonialism are reflected today in the number of Native Americans who live on government reservations.

Let's remember that Andrew Jackson encouraged westward expansion and settlement by supporting the Indian Removal Act.

On May 28, 1830, United States President Andrew Jackson signed the famous Indian Removal Act that supported the westward expansion and invited many Americans to settle territories in the west. These were territories west of the Mississippi, and the President could grant lands in exchange for Native American Indian tribes' lands that already existed within the known US territory.

So this act gave powers to the US President to negotiate the removal of the Native Indians to other territories. The President wanted to support white settling to farm the lands and make them productive.

definicion del comcepto liberalismo

Answers

Answer:

El liberalismo es una doctrina que promueve las libertades civiles y que trata de oponerse al despotismo ilustrado, al absolutismo, así como otro tipo de corrientes en las que la figura del individuo no goza de plenas libertades.E

In which soil region is the Sunflower River located

Answers

Answer:

The Mississippi River River Valley

Explanation:

The Mississippi River Valley Alluvial Aquifer, which underlies the Big Sunflower River Watershed (BSRW), is the most heavily used aquifer in Mississippi.

Hope this helps

Who is the first prime minister in America​

Answers

Answer:

George Washington

Explanation:

Answer:
John Hancock

Hope this helped!

The forests of the terai regions are declining day by day.How should we control it?​

Answers

Explanation:

Deforestation and poisonous chemicals are two of Terai's most pressing environmental issues. In Chitwan, the vast majority of beekeeping in the highlands and more than half of those in the Terai encountered colony absconding problems.

Terai's woods have been removed. The land is cleared of trees and other associated vegetation in order to make it suitable for agriculture and farming.

A national newsmagazine publishes an article on efforts to restrict talking on cell phones while driving. Subsequently, the magazine receives 1,500 letters commenting on the article, with nearly two-thirds of the letters favoring tougher restrictions on cellphone use while in the car. Would this be an accurate reflection of public opinion on this issue

Answers

The options are:

A). Not likely, because the sample is not random and thus probably not an accurate reflection of public opinion on the issue.

B). Not likely, because the sample size is too small.

C). Not likely, because a poll is only a snapshot of what people think at the time a poll is taken.

D). Yes, because the magazine has a national circulation and the sample size is sufficiently large.

Answer:

E). Not likely, because the sample is not random and thus probably not an accurate reflection of public opinion on the issue.

Explanation:

As per the given description, the two-third letters received by the magazine out of 1500 letters favoring the stricter rules against talking on the cell phone during driving 'can not be considered an accurate public opinion because the sample has not been taken randomly to reflect the exact opinion of the people.' Another key reason is that the audience of the news magazine includes a specific group of people who do not represent the entire population correctly. Secondly, even out of the ones who read it a very little percentage of people would take efforts to write about it after reading the article. Thus, it is not an accurate public opinion.

Who is the 2nd richest men of Nepal?Sesh Ghale​

Answers

Answer:

Shesh Ghale is the second richest person in Nepal, with a net worth of USD 1.18 billion

Explanation:

jeez you already gave the answer in your question sushant!

Gurung
Gurung and her husband, Ghale, are the first billionaires in the global Nepalese diaspora and the only second billionaire of Nepalese origin. Gurung and Ghale first appeared on the BRW Rich 200 in 2009, and jointly appeared on subsequent rich lists.

Jack's parents caught him returning home late from a date and grounded him for a month. Robert was also caught arriving home late from a date, but his parents told him that as long as he gets home on time on subsequent dates, they will give him a higher allowance (though they will remove this increase if they catch him coming home late again). Neither set of parents catches every time their teenager gets home late. Why would we expect Robert to be home on time more often than Jack on future dates

Answers

We would expect Robert to be home on time more than Jack because Robert is being bribed or it’s more worth it to get a higher allowance than be grounded. It might be a psychological technique.

The location NASA in the city of Houston has impacted the state by

A- Threatening the state's economy and providing a large number of jobs.

B- Providing a large number of jobs, but threatening the environment.

C- Adding to the state's economy and providing a large number of jobs.

D- Providing some new jobs, but little to the economy of the state. pls help ​

Answers

Answer: C- Adding to the state's economy and providing a large number of jobs.

Explanation:

The location of the National Space Agency(NASA) in Houston has been immensely beneficial to both the city and the state. It provided a lot of jobs working in NASA facilities and contracting with NASA on non-space related jobs as well.

With so many new jobs and so much investment into the state, people were pay more taxes to the state government and consume more. This has led to a growth in the state's economy as these are the factors that instigate growth.

estion 2 OT 10
What could a human living now and a horse living thousands of years ago
have in common?
A. They have the exact same DNA.
B. They need the same amount of energy to survive.
C. They both get their energy directly from the sun.
D. They are made of some of the same matter.

Answers

Hi! I think it’s either C or D. I’m sorry I’m not more specific but I do believe it is C or D. I hope this helped someway Goodluck!

Give a short summary of the French revolution??​

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The French Revolution is considered a remarkable event in world history. The storming of the Bastille prison on July 14, 1789, marked the beginning of the French Revolution. French society was divided into three states. The nobility and clergy enjoyed many privileges in French society.

Hope This Helps You ❤️

Irinia's dog loves to go for walks, and she always puts a leash on him when they go out. The dog used to wag his tail as soon as they got outside, but now he wags his tail when Irinia picks up the leash. One day, Irinia is cleaning out her garage and pulls some old bungee cords out of a box. Her dog begins to jump around and wag his tail the same way he does when he thinks they are going for a walk. The dog has ___________________ the stimulus of the leash to the bungee cords.

Answers

Answer:

Conditioned

Explanation:

The conditioned stimulus can be defined as a substitute stimulus that produces the same response in living beings. Conditioned Stimulus is a part of Classical Conditioning, in which classical response is attained when conditioned stimulus combines with an unconditioned stimulus.

In the given case, Irinia's picking up the leash has become a conditioned stimulus for her dog; indicating to go for a walk. So, when Irinia picked up a bungee cord, her dog responded because he is conditioned to respond to Irinia's picking up the cord.

Therefore, a conditioned stimulus is the correct answer.

A number of households in Florida were selected to participate in a trash recycling program. Residents were encouraged to separate newspaper and aluminum products for collection. It was found that a brochure that informed residents about the nature of the program increased the number of people who participated in the program by separating their trash that could be recycled.

Determine if this is an example of positive reinforcement, negative reinforcement, positive punishment, negative punishment, classical conditioning, or none of the above.

A. Negative reinforcement
B. Classical conditioning
C. Positive reinforcement
D. Negative punishment
E. Positive punishment
F. None of these

Answers

Answer:

C. Positive reinforcement   because it makes the world a better place and it cleans up the earth. Everyone comes together

Explanation:

All of the following statements about thinking at the margin are TRUE except:
A.
It often leads to better decision making.
B.
It is a common form of economic thinking.
C.
It promotes hasty decision making and poor decisions.
D.
It involves adding and subtracting units one at a time to analyze the consequences and costs.


Answers

Answer:

B. It is a common form of economic thinking

Explanation:

Thinking at the margin is a pattern of thinking where the thinker thinks forward with regard to the coming hour, the coming day, or coming income, while letting the past to go and considering what is presently best for the the thinker or in the coming times.

Thinking at the margin involves thinking ahead, and in economics principle, thinking at the margin is required for making rational decisions

An example of thinking at the margin is deciding to by more pasta for the month than required when there is a scarcity of a brand of pasta and the inflation, which may both be due to the introduction of better brand of pasta by the manufacturer causing a delay, and a temporary inflation respectively

Therefore, thinking at the margin is a common form of economic thinking

Answer:

B. It is a common form of economic thinking.

Explanation:

Edge 2021

what was George Washington trying to say about the american government in this proclamation

Answers

Answer:

The United States should with sincerity and good faith adopt and pursue a conduct friendly and impartial toward the belligerent Powers.”

Explanation:

I looked it up.

I need help please urgent......​

Answers

Answer:

The correct name is Houston.

Explanation:

Houston was the first with Astroturf, used at the Astrodome in 1966.

Houston also is the center for aerospace development and insudtry. It is also the home to NASA mission control for the International Space Station (ISS).

It makes sense for Houston to have the most scientist for NASA and many tech, medical, and other companies.

Select ALL the correct answers.
Which two statements best describe the legislative process?
Most bills never become laws.
Most bills die because the president has used the pocket veto.
Ideas for bills can come from anyone.
The Supreme Court has no role in the legislative process.

Answers

Answer:

C and D.

Explanation:

Legislative Process is the process of governmet through which ideas are changed into bills and once bills get passed, it is enacted into law. Article 1, Section 1, of the United States Constitution states the process of making laws.

Making of a law goes through various steps, beginning with idea generation. The ideas for bills can come from anyone be it regular citizen or advocacy groups. But only Members of Congress can present bills in the Congress.

The other option correct for legislative process is that the Supreme Court of the United States do not have any role to play in this process.

Therefore, options C and D are correct.

Which BEST describes an economy that is in a trough of the business cycle?
Group of answer choices

unemployment is high, real GDP is low, and inflation is low

unemployment is low, real GDP is high, and inflation is high

unemployment is high, real GDP is high, and inflation is low

unemployment is low, real GDP is high, and inflation is low

Answers

unempolyement is high, real GDP is low, and inflation is low

“ Stop and Frisk “ Common lit what is the answer ?

Answers

Stop and frisk is randomly stopping people in public that may or may not look suspicious and quickly patting them down incase of the possibility that they do have something illegal on their persons.

what the person above or under me said

How can the law, the citizens, and community protect and support victims of xenophobia?​

Answers

Answer:

The Bill prohibits discrimination on the grounds of gender, pregnancy, colour, birth, culture, race, sex, marital status, family responsibility or status, HIV/AIDS status, ethnic or social origin, sexual orientation, conscience, religion, disability, age, language, and belief.

Explanation:

Construct a concept map on the difference between meiosis and mitosis using the given descriptions below.

Answers

Answer:

The main difference between mitosis and meiosis is thag mitosis prosuces two daughter cells that are genetically identical to parent cells while meisos produce daughter cells that contain half of the gentic material of the parent cell

Explanation:

During meisis is where the single cell divides twice to produce four cells containing half the original amount of genetics. The sex cells/ gametes produce during the cell divison.

The mitosis and meiosis is that mitosis involves the  2 daughters and meiosis produces daughter cells that contain half of the genetic material.

What is a concept map?

A concept map is a display diagram or a graphical tool and represents the relationships between the concepts and ideas. Most of them show the areas of boxes and form in a hierarchical fashion and have connected line arrows.

During the process of meiosis, the single cell divides twice and makes four cells that have half original genetic matter.

Find out more intimation about the concept map

brainly.com/question/18401018

how can migration affect the density of an area​

Answers

Answer:

Migration can affect population distribution by causing the population of one area to increase while simultaneously decreasing the population of another. This can also cause one area to be more densely populated than another.

what are the characteristics of mixed economy system ​

Answers

Answer:

A mixed economy has three of the following characteristics of a market economy. First, it protects private property. Second, it allows the free market and the laws of supply and demand to determine prices. Third, it is driven by the motivation of the self-interest of individuals.

Is there any possibility of development of railways in nepal ?​

Answers

Answer:m

Explanation:

Answer:

Nepal Railway plans to extend its service beyond Janakpur in future. It is going to operate to Bijayalpura very soon, up to where infrastructures are operational and up to Bardibas in the near future where rail infrastructures are under construction by Department of Railways.

The Sacco-Vanzetti case: Group of answer choices B and C revealed the power of the Massachusetts governor to intervene in controversial criminal cases. engendered widespread support for repealing recent anti-immigration legislation. played out in an atmosphere of fierce anti-radicalism in the United States. for Italian-Americans, symbolized the strength of nativist prejudices in America.

Answers

Answer:

Played out in an atmosphere of fierce anti-radicalism in the United States.

For Italian-Americans, symbolized the strength of nativist prejudices in America.

Explanation:

Bartolomeo Vanzetti and Nicola Sacco were involved in a shooting and were put on trial and killed in 1927. During the 1920s, America fear of communist resulted in anti-immigrant among the Americans. The consequence of the executions resulted in nativist reactions toward working-class immigrants by Americans. The immigrants destroyed their status as they were seen as a destroyer of society by anarchists.  

How did Hitler dismantle the democratic rule in Germany or Explain the features of political policy adopted by Hitler after coming to power in 1933.​

Answers

Answer:

Hitler now set out to dismantle the structures of democratic rule. The Fire Decree of 28 February 1933 suspended civic rights like freedom of speech, press and assembly. Communists were hurriedly packed off to new established concentration camps. All political parties were banned.

Why were more African American dying in the war​

Answers

Answer:

Bc most people would turn around the black bc of the way their skin looked at hospitals

Explanation:

HOPE THIS HELP, AND IF CORRECT PLEASE MARK BRAINLIEST!-NatashaTy!!!!

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