Which of these observations of Barnard’s Star is most likely accurate?
A.Barnard’s Star is less bright than the sun, has a surface temperature below 3,800K, and is red
B.Barnard’s Star is brighter then the sun, has a surface temperature below 5,300K, and is yellow.
C.Barnard’s Star is brighter than the sun, has a surface temperature above 5,300K,and is yellow.
D.Barnard’s Star is less bright than the sun, has a surface temperature above 3,800K, and is red .
Answers
Answer: The answer is A
Explanation:
The observations of Barnard’s Star that most likely to accurate is .Barnard’s Star is less bright than the sun, has a surface temperature below 3,800K, and is red. Thus option (a) is correct.
What is a star?A star is a huge sphere of plasma held together by its own gravity. It is composed mostly of hydrogen and helium, which are continuously undergoing nuclear fusion at its core, producing enormous amounts of energy and light. This energy radiates outwards in the form of light and heat, which is what we see as a star's brightness.
Stars come in a wide range of sizes, temperatures, and colors, and they play a crucial role in the universe by providing the energy necessary for life to exist on planets orbiting them.
Barnard’s Star is less bright than the sun, has a surface temperature below 3,800K, and is red is the observations of Barnard’s Star that most likely to accurate.
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Related Questions
Find the value of X.
120+x=180
Answers
Answer:
60
Explanation:
subtract 120 from 180
Answer:
x=60
Explanation:
120+x=180
x=180-120
x=60
¿Cuánto tiempo se toma para definir el clima de un lugar y que se toma en cuenta para definir ese clima?
Answers
How were European nations such as Britain, France, Germany and Russia able to take control of china through spheres of influence?
Answers
Answer:
Through military attacks and threats.
Explanation:
The European nations such as Britain, France, Germany, and Russia were able to take control of China through spheres of influence by using "military attacks and threats and in turn to sign unequal treaties and long term land leases.
Starting from the late 19th century to the early 20th century, France took over the sphere in Southwest China, Germany took Shandong Province, Russian took the northern part of the Great wall, while Britain tool over the whole Yangtze River valley
Circle J is congruent to circle P.
If OK = 2x, QR = 12, and RT = x + 3, what is the length of chord KM?
8
9
10
12
Answers
Answer:
9
Explanation:
Write a paragraph explaining where DNA is located in the cell and what makes up DNA (there are multiple parts)
I’ll give brainiest pls I just need a paragraph about it pls
Answers
Hope this helps!
Suggest why the effects of a tectonic hazard vary between countries of contrasting levels of wealth. (8 marks)
Answers
Answer: Physical processes taking place at different types of plate margin (constructive, destructive and conservative) that lead to earthquakes and volcanic activity. The effects of, and responses to, a tectonic hazard vary between areas of contrasting levels of wealth.
Explanation:... Management can reduce the effects of a tectonic hazard. not sure if im right .
how hanging valleys form
Answers
hi please help i’ll give brainliest thanks
Answers
Answer:
C
Explanation:
mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
1. When describing North Korea, "isolation" refers to the country's lack of: a. Major cities b. Neighboring countries c. Contact with the outside world d. News organizations
Answers
I need help on this question asap please
Answers
Answer:
I can't see make it bigger honey
Explanation:
Answer:
Tourist attractions for Africa
Explanation:
It's not things that affect the economy, and it's not the reason diseases spread. Those are landforms, so they aren't the effects of colonization, so it's tourist attractions.
does anyone have edexcel geography b 2019 paper 2?
Answers
Answer:
No
Explanation:
People might leave urban areas and move to
rural regions when?
Answers
Answer:
during retirement
Explanation:
Which of the following analyses best summarizes the relationship between the built environment and the natural environment?
A.
The built environment has an impact on the natural environment.
B.
The natural environment has an impact on the built environment.
C.
The built and natural environments have impacts on each other.
D.
The built and natural environments do not influence each other.
Answers
Answer:
a
Explanation:
The built environment has an impact on the natural environment.
Answer:
A.
The built environment has an impact on the natural environment.
Explanation:
edge 2021
4. Which two factors help shape the population growth rate?
A.) stabilization and demographic transition
B.) urbanization and industrialization
C.) feritlity and mortality
D.) none of the above
Answers
Answer:
D none of the above
Explanation:
Answer would be Birth rate and Economic development, But was not on there. But here is more understanding of it .
The factors that cooperate for population growth are the high birth rate (number of births) alongside the decrease in infant mortality, economic development and the increase in life expectancy of the population.
Such an increase in life expectancy is the result of improvements in health systems, advances in medicine and basic sanitation and adequate hygiene for populations.
Which statement best describes the physical weathering shown by
the diagram?
A) Enlargement of the cracks occurs because water expands
when it freezes.
B) This type of weathering occurs only in bedrock composed of
granite
C) The cracks become wider because of chemical reactions
between water and the rock.
D) This type of weathering is common in regions of primarily
warm and humid climates.
Answers
Answer:
The answer would be A
Explanation:
The cracking apart or melting of rock samples on the Planet's level is called weathering. Weathering is termed as the breakdown or dissolution of rocks and minerals on the Earth's surface.
Moisture, glaciers, soils, minerals, flora, wildlife, and weather patterns are all degradation factors.
The correct answer is A) Enlargement of the cracks occurs because water expands when it freezes.
The water at the underground level when starts to freeze starts to change the shape and the pattern of water that means it gets to change in the shape of solid and the solid shape requires the place in the underground level. This space enlargement results in cracks on the earth's surface and due to this, the earth's surface starts expanding.
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Japan has a very small land area (about the size of California), but has over 120M people (4x the number of people of CA). On top of that, most of the country, as you see in the picture, is mountains. How do you think Japan adapts to having such a large population living in such a small land area?
Answers
The rock type, or
of the area will help
determine the type of landform created.
Answers
what are you asking?
When the Great Plains suffered a terrible drought and the winds picked up, the area was called the..
Answers
Answer:
“The Dust Bowl“ would be my guess.
Explanation:
That is if we are talking about the 30s during the great depression. Hope this helps!
Answer:
The Dust Bowl
Explanation:
IRECTIONS: True/False Indicate whether the statement is true or false
1. The Danube River flows through nine countries in Eastern Europe pls someone help
Answers
Answer:
false it flows through 10 countries they are
Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova and Ukraine)
hope it is helpful to you
Describe the difference between a typical galaxy and a quasar.
Answers
Answer: Hello, There! Your Answer is Below
Quasars can only exist while sufficient material is falling into the accretion disc. Once the material runs out the active galaxy becomes a regular galaxy. The quasars which have been observed are billions of light years away. This means that they are young galaxies as seen in the early universe
Explanation:
Quasars live only in galaxies with supermassive black holes — black holes that contain billions of times the mass of the sun quasars have luminosities thousands of times greater than a galaxy such as the Milky Way. Usually, quasars are categorized as a subclass of the more general category of AGN. The redshifts of quasars are of cosmological origin.
Hope this helps!
Have a great day!
-August~
Why has some tropical grassland in Africa become desert, like the Sahel?
Answers
Answer:The Sahel contains the fertile delta of the Niger, one of Africas longest rivers. Unfortunately, the Sahels fertile land is rapidly becoming desert as a result of drought, deforestation, and intensive agriculture. This process is known as desertification.
Explanation:
Answer: bc of loss of water plus African Humid Periods Paced by Earth's Orbital Changes.
Explanation:
i hope this helps ;) - Mal
Which arrow indicates the direction of centripetal force on the object, represented by the black dot?
Answers
Answer:
The diagram shows 4 possible options for the centripetal force acting on the object represented as a black dot. The correct option is the direction marked as C since it points inwards and ties the object to its circular motion.
Answer:
Direction C
Explanation: It's the force that makes an object to follow a circular (and generally a curved) path. Its direction is always towards the center of the circle, perpendicular to the tangent velocity. The diagram shows 4 possible options for the centripetal force acting on the object represented as a black dot. The correct option is the direction marked as C since it points inwards and ties the object to its circular motion.
A. Identify FOUR countries that include parts of Sápmi.
B. If Sápmi existed as a separate state, identify the type of morphology that would best describe it.
C. Compare the type of boundary that defines Sápmi with the type that defines Estonia or Latvia.
D. Explain whether Sápmi is a nation-state.
E. Explain how language both unites and divides the people of Sápmi.
F. Identify ONE other group of people whose territory stretches across multiple countries.
G. Describe ONE challenge faced by a group of people whose territory crosses the boundaries between countries.
SOMEONE PLZ HELP ME.
Answers
Answer:
1. Sweden, Norway, Finland, and Russia
2. Elongated
3. Estonia and Latvia have political boundaries, while Sapmi has physical boundaries.
4. Sapmi is a nation-state.
5. The three languages are kind of the same, but there are some differences.
6. The Cajun People
7. The land they own might not be given to them since it is in a different country.
Explanation:
The sapmi are traditional people that live in the nordic nations and including the Russia and Norway, They speak the same language but have some differsences. The people live in the region collectively called Lapland.
Cajun People are a group of peole that have terrotiry that streches form various nations. The problem faced by the people of terrotories was that land may not be givem to them.
Find out more information about the Sápmi.
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ASTRONOMY HELP!!! PLEASE!!!!
1. A protostar has not yet kindled nuclear fusion but glows: A. in the ultraviolet, B. in the infrared, C. with gamma ray emission.
2. Large, hot young stars ionize an HII region (singly ionized) region around them called A. HI region, B. 'The zone', C. Stromgren Sphere.
Answers
Answer:
1. Option C
2. Option A
Explanation:
1. option C is correct
The protostar glows because of the heat released by the nuclear fusion process in the form of gamma rays. Hence, option C is correct
2. option A is correct
The HII regions consists of the ionized hydrogen atom that causes diffusion of nebula or emission of nebula and coming from a central star with temperature greater than 20,000 K.
1)The heat released by the nuclear fusion process in the form of gamma rays causes the protostar to shine. As a result, option C is appropriate.
2)The HII regions are made up of ionized hydrogen atoms that generate nebula diffusion or emission and are produced by a central star with a temperature more than 20,000 K. As a result, option A is appropriate.
About A protostar and HII region:
A protostar is a nascent star that is still gaining mass from its molecular cloud of origin. The protostellar phase is the first in the stellar development process. It lasts roughly 500,000 years for a low-mass star.HII regions are emission nebulae formed when high-energy UV light from young, massive stars ionizes neighboring gas clouds. They are mostly made up of hydrogen, hence the name (astronomers refer to ionised hydrogen as HII, while neutral hydrogen is referred to as HI). They have temperatures of roughly 10,000 Kelvin.
Thus for both the questions Option C and A are correct.
For more information about the A protostar and HII region refer to the link:
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3. Describe the Milky Way galaxy in terms of galaxy types?
Answers
Hiiioo! Can someone please help me out! ❤️:D
Answers
Write any 3 work that was related tk Ravana's death ? What things were done by him ?
The one who gave this answer will be a true Hindu ....
Answers
Explanation:
Lord Rama asked his brother Lakshman to go to Ravana and learn something about the world. Lakshman obeyed his brother’s order and stood near dying Ravan’s head. But Ravan did not say anything and Lakshman returned to Rama. Rama then told Lakshman that whenever one wants to learn something from a person, you should never stand near his head, but his feet.
Lakshman again went to Ravana and this time he stood near his feet. Ravan aseeing Lakshman standing near his feet told him Three main secrets that would make anyone’s life successful.
1 - The first thing Ravan told Lakshman was that one should complete any auspicious work as soon as possible and keep delaying the inauspicious work as much possible.
He told Lakshman that he could not recognize Rama and therefore delayed arrival at the shelter. Hence this is his condition.
2 - The second thing he taught Lakshman was never to underestimate one’s enemy. He said that he did this mistake of understanding the monkeys and bears lesser or incompetent and he lost the battle against them.
He said, when he asked Lord Brahma to make him immortal, he said no one else except for monkeys and human could kill him. This is because he believed that both these living beings were not capable to kill him.
This was his mistake and he suffered life as a result.
3 - The third and final thing Ravan told Lakshman that one should not reveal one’s life secret to anyone in the world. Here also Ravan made a mistake as Vibhishan knew the secret of his death. Ravan knew this was his biggest mistake of life.
10. Which of the following Caribbean islands have dense equatorial forests?
a. St Kitts and Nevis
b. Guyana
c. Jamaica
d. Barbados
Answers
Answer:
Barbados... i think lol
Explanation:
Equatorial diameter of earth is not identical to polar diameter which one is greater and why
Answers
Answer:
The Earth spins on its axis once in 24 hours. Anything that is being spun in a circle, like a stone tied on the end of a piece of string, experiences an apparent force trying to fling it outwards. This is called centrifugal force (or centripetal - I’m not going to get into the argument here that people often have about whether it’s a ‘real’ force or not) and it arises from the fact that a body in motion wishes to continue in a straight line - unless a force acts upon it. In the case of a stone being twirled around on the end of a buit of string, the string transmits the force of the hand that is holding the string and pulls inward on the stone, forcing it to travel in a circle around the person.
Find 5 Primary Economic Activities that take place in the us
Answers
Answer:
Agriculture, Mining, Hunting/ Gathering, Fishing, etc.