what is the unlimited end of a high mass star that is greater than 2.8 times the mass of the sun

Answers

Answer 1
The main factor that shapes the life and eventual death of a star is how much mass it began with. A star that is 2.8 times the mass of our sun will most likely end up as a white dwarf.
When medium size stars are near the end most of the hydrogen core has been changed to helium. The helium core then begins to shrink and as this happens the core heats up. The energy that is released by the core heating up causes the the outer hydrogen shell to expand greatly. As the shell expands it cools and the colour changes to red.
The helium core will continue to heat up until the helium atoms start to fuse to form carbon atoms. When all the helium is fused to carbon it begins to die and gravity causes the last of of the star's matter to collapse inward forming a white dwarf.

Related Questions

Which country is LEAST likely to have a large percentage of its population engaged in agribusiness activities?

Afghanistan
United States
Kenya
India
Brazil

Answers

the answer to this question is India 
The appropriate answer is the United States. Agribusiness is a set of economic and political relationships that organizes agro-food production. The United States is the only country on the list that is classified as a developed country. Most citizens here are engaged in tertiary or service industries.
The remaining countries are classified as developing nations and have a relatively large portion of their population that resides in the rural areas engaged in some form of agribusiness.

This empire flourished in Pakistan and Bangladesh from about 1500–1700. a. Dravidian c. Aryan b. Mughal d. British

Answers

I think the answer is B. Mughal. If that's not right then I would say it is D. British. I hope this helps! :)

1. what are the three most important elements of weather?
a. heat, air and topography
b.heat, air, and water
c.water, heat, climate
d. topography, climate, water

Answers

b.heat, air, and water
(I guess)

Answer to the assessment is 1. b 2. a 3. c

How did the US assist Japan following World War II?

Answers


Japan's U.S.-approved constitution granted full freedoms to its citizen, created a congress and renounced Japan's ability to make war, Getting rid of their army air force and navy. Since this did happen the U.S took responsibility for Japans security. 

Final answer:

The United States significantly assisted Japan post-World War II with financial aid, security guarantees, and access to U.S. markets, aiding Japan's transformation into a democratic society and economic superpower. This support was instrumental in Japan's rapid post-war economic growth and in securing Japan as a key U.S. ally in Asia during the Cold War.

Explanation:

After World War II, the United States played a pivotal role in assisting Japan's recovery and establishing a new democratic government. Under the leadership of General Douglas MacArthur, the U.S. occupation oversaw the drafting of a new constitution, the restructuring of the Japanese economy, and the implementation of profound societal reforms. Japan was assisted through the significant U.S. investment, including a direct $2 billion aid, and through structuring a democratic framework that led to its impressive post-war economic resurgence.

The Japanese economy was empowered to focus on low-wage industries producing products for export, particularly to the United States, enabling rapid growth from a producer of inexpensive goods to a leader in high technology. This transformation was facilitated by the fact that Japan was already an industrialized nation pre-war, allowing it to quickly mobilize its existing capacities with the assistance provided.

Moreover, the U.S. had strategic interests in stabilizing Japan to serve as a bulwark against the spread of communism in Asia, reflected by treaties ensuring Japan's security and preferential access to U.S. markets. Hence, the recovery process was deeply linked with the broader geopolitical dynamics of the Cold War era, with Japan becoming one of the most powerful U.S. allies in the region.

In terms of matter and resources, earth is essentially a(n) ________ system ; in terms of energy, earth is a(n) ________ system. in terms of matter and resources, earth is essentially a(n) ________ system ; in terms of energy, earth is a(n) ________ system. open; closed closed; open closed; closed open; open negative; positive submit

Answers

In terms of matter and resources, the Earth is essentially a closed system, because matter and resources are fixed.
In terms of energy, the Earth is an open system, because there is a balanced transfer of energy. (The energy radiates into the Earth's system, from the Sun and then it is radiated back into space from the Earth. The flows of energy are regulated by the Earth's atmosphere and ozone layer.)

What was an important economic goal associated with the building of the Three Gorges Dam?

Answers

The most important economic goal that was associated with the construction of the Three Gorges Dam the production of the hydroelectric power. The water was going to be used as clean and renewable resource . Hydroelectric is very clean since it does not emit any greenhouse gases when producing this type of energy.

The san andreas fault in california is a good example of a _________ plate boundary.

Answers

north American and pacific plate boundary.
CONTINENTAL

People living in the cold regions of Russia and Finland often build their structures with __________ to prevent them collapsing from the weight of snow.
A.
slanted roofs
B.
wooden walls
C.
underground shelters
D.
abode bricks

Answers

A)slanted roofs mark as brainliest
The answer is (D) abode bricks

In two to three paragraphs, explain how Vietnam’s political boundaries, affiliations, and alliances changed from the end of World War II to 1975, when the country finally achieved independence. Based on your research, include the causes and effects of foreign aggression on Vietnam during this period.

Answers

In writing Paragraphs you must consider the structure of the Paragraphs, Paragraphs contain three main parts:

a topic sentence supporting sentences a concluding sentence.

What are Vietnam’s political boundaries?

Generally, In 1975, communist forces brought an end to the war in Vietnam by seizing control of South Vietnam. The following year, the country was unified under the name Socialist Republic of Vietnam.

France sought to reassert its colonial power in Vietnam after the end of World War II and the fall of Vietnam's monarchy, but it was ultimately unsuccessful and was finally defeated in the First Indo-China War. The Geneva Accords of 1954 established a provisional border between the two halves of the nation, with the promise that democratic elections would be held in 1956 to reunify the country.

And this is the point at which Vietnam was irrevocably altered by the Second World War. In the year 1940, the German army made quick work of France by cutting through the country like butter. Japan, an ally of Germany, finally invaded Vietnam and took over as the country's colonial ruler, replacing the French.

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Vietnam's political evolution and the impact of foreign aggression from World War II to 1975 are detailed. The divided nature of the country and external interventions had lasting consequences.

Vietnam's political boundaries, affiliations, and alliances changed significantly from the end of World War II to 1975, marking a profound transformation in its governance. Post-World War II, Vietnam experienced a division between the North and the South, influenced by communist and capitalist ideologies respectively. The Battle of Dien Bien Phu in 1954 led to the division of Vietnam along the seventeenth parallel, setting the stage for future conflicts.

Following France's defeat in 1954, Vietnam was granted independence but remained divided. The Geneva Accords aimed to unite Vietnam after elections in 1956, yet the country remained split due to differing political ideologies. The involvement of external powers during this period, especially the United States and the domino theory, further fueled the tensions and conflicts within the country.

Foreign aggression on Vietnam during this period had significant repercussions. The Vietnam War, which lasted till 1975, caused immense destruction and loss of life. The aftermath of the war saw Vietnam unified under a communist regime, with mass refugee movements and economic challenges. The war not only altered Vietnam's political landscape but also had lasting effects on its society, economy, and relationships with foreign nations.

How do you create a patrol map? (1 point)
You create a patrol map by timing how long it takes you to travel between objects.
You create a patrol map by picturing objects in your mind, and then describing them to others.
You create a patrol map by surveying an area for trails.
none of the above

Answers

The answer is none of the above. You create a patrol map by mapping the distance it takes to travel from one landmark to another.

Select the similarities between the Caribbean and scotia plates

Answers

They are both relatively small for plates, they do not encompass large land masses, they are both encompass mafic rock
Caribbean and Scotia plates similarities:The similarities between the Caribbean and Scotia is that they are both smaller and are similar in size. They also don't enclose a large area of land due to their size.The popular rock found on both of them is mafic igneous rocks which have high amount of magnesium and ferric oxides.The Caribbean plate is around 3.2 million square Km and Scotia plate is 2.4 million square Km.

Which statement best describes how the information above relates to human activities?

Human activities have increased volcanic eruptions.
Overfishing of the world's oceans is leading to the extinction of some fish species.
Nations of the world can work together to use energy more efficiently.
Moving to cooler climates will help save energy.

Answers

Nations of the world can work together to use energy more efficiently.

Why was wegener's idea of continental drift rejected? it implied that the continents would have plowed their way through weaker oceanic crust, like a boat cutting through a thin layer of sea ice?

Answers

Alfred Wegener's idea of continental drift was rejected mainly because at that time, he could not explain the forces that caused the continents to drift. During this time, scientists believed that the earth was a solid and immovable object. He proposed it could be the centrifugal force caused by the Earth's rotation or the gravitational pull of the sun and the moon but both were immediately rejected. 
Final answer:

Wegener's idea of continental drift was initially rejected due to insufficient evidence and a lack of explanation. It gained acceptance later with the discovery of plate tectonics and new evidence.

Explanation:

The idea of continental drift proposed by Alfred Wegener was initially rejected by the scientific community because there was insufficient evidence to support it. At the time, there was no clear mechanism for how continents could move through the oceanic crust. Wegener's theory also lacked a comprehensive explanation for the forces driving continental drift.

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Which statements accurately show the concept of scarcity? Check all that apply. There is a drought in the middle of growing season that has affected corn crops. An individual is not able to purchase a newly released video because of limited supply A family is selling apples they have grown on their farm because they have too many to eat themselves. An individual wants to buy a new car because his is old. An individual decides that she needs to obtain a second job to save money to purchase a house.

Answers

the answer to the question is A, B, and E.

The statements that accurately show the concept of scarcity are;

There is a drought in the middle of growing season that has affected corn crops.  An individual is not able to purchase a newly released video because of limited supply  An individual decides that she needs to obtain a second job to save money to purchase a house.

Scarcity is a condition of resources being scarce or in limited amount to satisfy subjective wants and needs. Scarcity also involves a person's inadequate resources to purchase commodities. Scarcity differs from one place to another and an object is considered scarce if it is expensive and is available in limited amounts, or its cost of production is high.  



Land that has soil carried downstream by a river and deposited at the river's mouth is called

Answers

Answer:   a  "delta" .
_____________________________________________

Answer:

delta or runoff.

Explanation:


What part of South America has a Mediterranean climate?


the Pacific coast of northern Chile


the coastal plains south of the Atacama Desert


the selva of the Amazon River basin


the high plateaus of the Andes

Answers

the coastal plains of south of the atacama desert.

coastal plains south of the Atacama Desert

List two agents of Erosion

Answers

one is wind, wind can blow sand, and another is water, water can wash away same from a beach

Answer:

Wind, Water

Explanation:

The agent of erosion is classified as those agents on which the entire earth landform been built and the water-based erosive agent is the most common and occur in various form of energy like the rain, sea, river and ice forms and thus they play a crucial role in the dynamic of earth landscape.  Like the bays, estuaries and the delta formations, along with the formation of the coastline and the erosion of the glaciers, etc.  The wind as an agent of erosion is a quite dominating role in the desert landscape as the action results in the creation of sand dunes and there erosion, transportation and tere deposition are all carried out by this wind in action.

two reasons why you would support (or disagree with) increasing help for struggling countries?

Answers

In today's sophisticated society,people of the developing countries are still fighting for their basic righs such a better healthcare,proper education and a sound source of income.While the governments of the underdeveloped countries are struggling to improve the living standards of their people,I believe that contribution by richer nations should be more in this regard.

Demographics is data that is used to tabulate the various characteristics of a human population.
False
True

Answers

True, it shows specific statistics and aspects of portions of a human population

Answer:

True

Explanation:

As demography is the study of the population characteristics and defines the humans in terms of the various aspects like there migration patterns and there behavioral characteristics etc. Hence the study of the population, there settlement patterns and there growth and development is all based on the relation of the fundamental factors that influence their existence.

A caribbean island that is home to a large community of south asians is _______________.

Answers

I believe the answer to your question is Trinidad.

Magma that forces its way into rocks and hardens is called

Answers

igneous rock is formed when magma hardens

Which event of the 1800s led to increased interest in the colonization of Africa?
A. the Industrial Revolution
B. World War I
C. World War II
D. the American Revolution

Answers

The answer is the Industrial Revolution (A).

Answer:

the answer is A.the Industrial Revolution

Explanation:

What is the approximate amount of time the Moon takes to complete one cycle of phases and return to the same phase as shown in the diagram? Include units in your answer.

Answers

Twenty-seven and three tenths days

What are some physical features that probably shaped migration routes in Europe?

Answers

It was the rivers that probably shaped migration routes in Europe. Thus, Rivers are very navigable in Europe that’s why many people have settled along these rivers. Additionally, it is the Alps that have provided a natural barrier and provided a wall between the Italian Peninsula and the rest of Europe.

this site is litttt!

Younger oceanic crust will have ________ ocean sediments, while older oceanic crust will have ________ oceanic sediments.

Answers

Younger oceanic crust will have thinner oceanic sediments because it would have not had enough time to form. As a result they are not so thick and deep yet. On the other hand, older oceanic crust will have thicker oceanic sediments or more sediment covering it. So thickness of oceanic sediments work as a geological clock. 

Some people consider the earth to be _____ because of its dynamic processes or cycles. stagnant alive changing user: select all of the answers that apply. biogeochemical cycles _____. help keep the earth warm recycle essential materials disrupt the distribution of materials are needed by living things

Answers

Some people consider the Earth to be alive because of its dynamic processes or cycles. Biogeochemical cycle is the turnover of different substances in the Earth and occur in different parts of the Earth like in the biosphere, lithosphere, atmosphere and hyrdosphere. Biogeochemical cycles help keep the Earth warm, recycle essential materials and is vital (or are needed) to living things.  

The answer is B, alive.

HELPPPP
It is 9 a.m. in New York. What time is it in Manila?

1 am
4 am
10 pm

Answers

10 pm I Belive
Good Luck! :)

How did the Meiji reformers try to modernize Japan?

Answers

Meiji reformers wanted to create new political and social system and build a modern indurstrial economy. I think this is 4th or 3rd grade stuff but hope that helped if you have any questions about it feel free to type it in the comment!

A spring tide occurs during which of the following conditions?

A:) the earth is aligned with the moon and sun.

B:) the earth is aligned with the sun only.

C:) the earth is aligned with the moon only.

D:) the moon-earth and sun-earth alignments are perpendicular.

Answers

Spring tides occur when the Earth, sun and moon are aligned. Despite its name spring tides have nothing to do with the Spring season. It was derived from the concept of "springing-forth" . They occur at twice each lunar month, bringing higher tides during high tide and lower tides during low tide. 

  
Final answer:

A spring tide occurs when the Earth, Moon, and Sun are aligned. This is when the combined gravitational effects of these celestial bodies create higher high tides and lower low tides. This corresponds to option A in the given choices.

Explanation:

A spring tide is a specific type of tide that occurs when the Earth, Moon, and Sun are aligned. This alignment results in the combined gravitational effects of the Moon and Sun, which create higher high tides and lower low tides. This condition corresponds to option A: the earth is aligned with the moon and sun.

Conditions B, C, and D are not correct descriptions of when a spring tide occurs. To be specific, a spring tide happens during a full moon or a new moon, both phases when the Sun and Moon are lined up with the Earth.

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(If you want more points answer this) Why is shoreline erosion more severe during strong storms than during mild ones?

-The waves hitting the shoreline have more energy during strong storms.

-The waves hitting the shoreline have less energy during strong storms.

-Stronger storms bring stronger winds and wind does more damage to a shoreline than water.

-The damage done due to storms is about the same during any kind of storm.

CORRECT ANSWER: The waves hitting the shoreline have more energy during strong storms. 


 I edited this question after confirming the right answer. Leaving this here for anyone else who needs it :)

Answers

The waves hitting the shoreline have more energy during strong storms. This is the reason why shoreline erosion more severe during strong storms than during mild ones. More energy means more erosion, as an effect of the law of physics that regulates energy and mass.

The waves hitting the shoreline have more energy during strong storms

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