Which of the following correctly describes how the process of gravitational contraction can make a star hot? A. Gravitational contraction involves nuclear fusion, which generates a lot of heat.
B. Heat is generated when gravity contracts, because gravity is an inverse square law force.
C. When a star contracts in size, gravitational potential energy is converted to thermal energy.
D. Gravitational contraction involves the generation of heat by chemical reactions, much like the burning of coal.
Answers
When a star contracts in size, gravitational potential energy is converted to thermal energy of the following correctly describes how the process of gravitational contraction can make a star hot. Thus, option (c) is correct.
What is gravitational?The term gravitational the power that pull down two masse shot toward to each one other. It was the associating to the referring to motion towards a middle of gravitation. Gravity is the force by which a major planet or other gathering draws constituents toward its center.
According to the process of gravitational contraction is the time period of heat by chemical reactions. It was the gravitational potential energy is converted to thermal energy. It was the star contracts in size.
As a result, the significance of the process of gravitational contraction can make a star hot are the aforementioned. Therefore, option (c) is correct.
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Related Questions
The geographic barrier to the south is the:
-Gobi Desert
-Altai Mountains
-South China Sea
The East China Sea is a geographic barrier to the:
-East
-North
-West
The Gobi desert is a geographic barrier to the:
-East
-North
-South
Answers
Answer:
1. South China Sea
2. West
3. north
Explanation:
pls help me out How was the government able to make children go to residential school?
Analyze the image below and answer the question that follows. Satellite image of a brush fire near a coastline. Image courtesy of NASA Geographers studying the effects of climate change might look at the issue on a small __________ by studying how it affects the brush fires in Australia, shown in the image above. A. frequency B. elevation C. scale D. perspective Please select the best answer from the choices provided.
Answers
Answer:
______________
C. Scale
______________
Answer:
Hey!
I think the best possible answer is SCALE!
Explanation:
HOPE THIS HELPS!
problems in the educational system in the philippines problems among youths today recommendation
Answers
The educational system in the Philippines faces several challenges that impact the quality and effectiveness of education - Limited Access, Inadequate Funding, Curriculum Relevance and Quality of Teachers.
Some of the key problems include:
Limited Access: Many areas, particularly in rural and remote regions, lack access to quality education. Limited infrastructure, lack of resources, and distance from schools hinder the educational opportunities for students in these areas.Inadequate Funding: Insufficient funding for education results in a lack of resources, outdated facilities, and a shortage of qualified teachers. This negatively affects the overall quality of education provided.Curriculum Relevance: The current curriculum may not align with the needs of the rapidly changing job market. There is a need to ensure that the curriculum equips students with the necessary skills and knowledge for their future careers.Quality of Teachers: The shortage of qualified and trained teachers affects the quality of instruction. There is a need to attract and retain highly skilled educators, provide continuous professional development opportunities, and improve teacher-student ratios.For such more question on Funding:
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Which detail best helps readers imagine the scene?
Answers
Answer: Imagery
Explanation:
The closing of manufacturing plants in midwestern cities like Pittsburgh, PA and
Youngstown, OH is an example of which of the following?
Relative Location
Rust Belt
Suburban Sprawl
Urbanization
Answers
The closing of manufacturing plants in midwestern cities like Pittsburgh, PA, and Youngstown, OH is an example of "Rust Belt" (Option B)
What is the meaning of "Rust Belt"?The Rust Belt refers to the former manufacturing-dominated area stretching from New York to the Midwest. The Rust Belt is associated with places experiencing industrial decline and abandoned facilities that have rusted due to exposure to the elements.
The phrase "Rust Belt" refers to an area of the United States that underwent industrial decline beginning in the 1950s.
Heavy industry has fallen in the region, long regarded as America's industrial heartland, since the mid-twentieth century. Manufacturing job transfers overseas, greater automation, and the demise of the US steel and coal sectors are among the causes.
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The scale of a map is 1:50,000. If a road is represented in 2.5cm on the map, find the actual length of the road in km.
Answers
What causes the "niches" in the rock that were used by Native tribes to form the Gila River Cliff Dwellings?
Volcanic ash is deposited and then blown away by the wind.
Earthquakes cause small cracks in the rocks which humans expanded into larger caves.
Water drips out of the rock layers, evaporating so that its salt breaks the rocks
Flash floods erode underneath the cliff.
Answers
The niches in the rock that were utilized by Native tribes to form the Gila River Cliff Dwellings were causes by C. Water drips out of the rock layers, evaporating so that its salt breaks the rocks
What allowed for the Gila River Cliff Dwellings?The rocks underwent gradual degradation owing to weathering processes, with water playing a significant role.
Water seeping and dripping from the rock layers, combined with the influence of evaporation and the presence of salt, contributed to the progressive erosion and expansion of niches conducive to dwelling spaces. The sudden deluge of flash floods, unleashed by intense bouts of rainfall, has left its mark on the formation of niches.
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Complete Essay #21: Compare and contrast the three countries of the Maghreb (e.g., geographically, religiously, economically). 45 points
Answers
The Maghreb, also known as Northwest Africa, comprises three countries that share a unique blend of cultural, linguistic, and historical similarities. These countries include Morocco, Algeria, and Tunisia. This essay will compare and contrast these three Maghreb countries in terms of their geography, religion, and economy.
Geographically, the Maghreb is defined by the Atlas Mountains and the Mediterranean Sea. Morocco lies to the west of the Maghreb, and it shares its borders with Algeria and Mauritania. The country has a diverse geography, ranging from mountains to deserts and coastlines. Algeria is the largest country in the Maghreb, and it shares borders with Tunisia, Libya, Niger, Mali, Mauritania, Western Sahara, and Morocco. The country is known for its Sahara desert, the Atlas Mountains, and its Mediterranean coastline. Tunisia is the smallest country in the Maghreb, and it is located in the eastern part of the region. It shares borders with Algeria and Libya and has a varied topography that includes the Sahara desert, the Atlas Mountains, and the Mediterranean Sea.
Religiously, the Maghreb countries are predominantly Muslim. Islam is the official religion in all three countries, and it plays a vital role in their culture, politics, and society. Morocco has a majority Sunni Muslim population, with small numbers of Jews, Christians, and Baháʼís. Algeria also has a Sunni Muslim majority, with significant numbers of Christians and Jews. Tunisia is predominantly Sunni Muslim, with a small minority of Christians and Jews.
Economically, the Maghreb countries have some similarities and differences. Morocco has a diversified economy that relies on agriculture, tourism, and industry. The country is one of the world's largest exporters of phosphates and has significant trade relations with the European Union. Algeria is the wealthiest of the three countries, and its economy is driven by its vast natural gas and oil reserves. The country has a significant manufacturing industry, and it is the largest exporter of natural gas to Europe. Tunisia has a diversified economy that relies on agriculture, mining, and manufacturing. The country is known for its textiles, and it has significant trade relations with the European Union.
In conclusion, the Maghreb countries of Morocco, Algeria, and Tunisia share many similarities, such as their geography and religion, while also having significant differences in their economies. These countries have unique cultural heritages, which have been shaped by their history and geography. Despite their differences, the Maghreb countries have a shared sense of identity, which is reflected in their cultural practices, traditions, and way of life.
IG:whis.sama_ent
how do I figure this out
Answers
Answer:
b.4
Explanation:
so like you gotta do y2-y1 over x2-x1
Match the following.
1. rich in nutrients
2. Southern Hemisphere
3. North Pacific Ocean
4. provide current data
5. use knots
A. West Wind Drift
B. Woods Hole bottles
C. Upwelling
D. Kuroshio
E. Navigators
Answers
Answer:
1. Rich in nutrients - C. upwelling
2. Southern Hemisphere - A. West Wind Drift
3. North Pacific Ocean - D. Kuroshio
4. Provide current data - B. Wood Hole bottles
5. use knots - E. Navigator
Explanation:
Upwelling is wind driven motion above the ocean which creates colder atmosphere at the upper level of the sea. It is deep in nutrients which is deep water towards the ocean surface.
Answer:
1. Rich in nutrients - C. upwelling
2. Southern Hemisphere - A. West Wind Drift
3. North Pacific Ocean - D. Kuroshio
4. Provide current data - B. Wood Hole bottles
5. use knots - E. Navigator
Explanation:
Tropical Maritime Climate
1. Where Tropical Maritime Climate Found.
a- 10 degrees north and south of the
b- equator 15 degrees north and south of
c- the equator 23 1/2 degrees north and south of the equator
2. Identify some places found in 'Tropical Maritime Climate'.
a- South America and the East Indies
b- Central America and the Caribbean
c- Indonesia and Guinea Coast
3. Types of vegetation include: tropical rainforest, seasonal forest, dry evergreen woodland, and Montane forest.
a- True
b- False
4.The Elfin Woodland receives it moisture from clouds and mist.
a- True
b- False
5. Guyana is part of 'Tropical Maritime Climate'
a- True
b- False
6. Tropical Maritime Forests consists of:
a- Mangroves and savanna vegetation
b- evergreen trees, rainforests, seasonal forests, gnarled twisted trees
c- all of the above
d- none of the above
Answers
The answers are:
c- the equator 23 1/2 degrees north and south of the equatora- South America and the East Indies; b- Central America and the Caribbean; c- Indonesia and Guinea Coasta- Trueb- Falsea- Trueb- evergreen trees, rainforests, seasonal forests, gnarled twisted treesWhat is the Tropical Maritime ClimateThe Tropical Maritime Climate is found within 23 1/2 degrees north and south of the equator. This region typically experiences high temperatures, high humidity, and abundant rainfall throughout the year. The area is known for its dense vegetation, including tropical rainforests, seasonal forests, dry evergreen woodlands, and montane forests.
Many countries and regions are located within the Tropical Maritime Climate, including South America and the East Indies, Central America and the Caribbean, and Indonesia and Guinea Coast.
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1.10 part2 multiple choice regrants
Answers
Answer:
333333333
Explanation:
Why was the US detonation of a hydrogen bomb in 1952 and the Soviet detonation of one in 1953 significant?
It signaled that the Soviet Union was spying on the United States.
It was a sign that the United States was better at producing dangerous weapons.
It was a sign that the countries would soon threaten each other with war.
It signaled that the arms race was producing stronger, more dangerous weapons.
Answers
Answer:
D
Explanation:
Answer: it is D,It signaled that the arms race was producing stronger, more dangerous weapons
Explanation:
Took test
Which of the following statements about the economies of the world is false?
A.
The US economy is the largest in the world when measured per country.
B.
Four of the top five economies, measured in GDP per person, are located in Europe.
C.
The bottom five economies, measured in GDP per person, are located in Africa.
D.
The US economy is the largest in the world when measured in GDP per person.
Answers
Answer:
The correct answer is D. It is false that the US economy is the largest in the world when measured in GDP per person.
Explanation:
While it is true that the United States has the largest economy in the world in absolute nominal terms, with a GDP of approximately $21,000,000,000,000, in terms of GDP per capita this nation is ranked number 8, with a per capita production of approximately $63,000 year. This means that, despite being the country that produces the most amount of money a year, its inhabitants are not the most productive. Thus, the first place in the ranking of countries by GDP per capita corresponds to Luxembourg, whose inhabitants annually produce almost $115,000.
Answer:
The US economy is the largest in the world when measured in GDP per person.
Why was Herodotus's method of writing so revolutionary?
Answers
He remains the leading source of original information not only for Greek history of the all-important period between 550 and 479 BCE but also for much of that of Western Asia and of Egypt at that time.
The Earth has height, width, and depth. This means that it exists in _____ dimensions.
A four
B. three
C. two
D. one
Please select the best answer from the choices provided
Answers
Answer:
B. three
Explanation:
We live in a 3d world and 4d and 2d wouldnt make sense.
Answer:
3
Explanation:
the earth has three dimensions of space width depth and height
location of most volcanoes
a. island arc
b. lava
c. basalt
d. magma
e. hot spot
f. plate boundaries
Answers
the location of the most volcanoes is e. hot spot
explain the significance of shadow zones providing the information about Earths interior
Answers
Answer:
Shadow zones help us understand the properties and structure of the planet's layers. When seismic waves, generated by earthquakes or other sources, travel through Earth's interior, they encounter different materials and undergo various changes in their paths and speeds.
P-wave Shadow Zone:
P-waves, also known as primary waves or compressional waves, are the fastest seismic waves and can travel through both solids and liquids. However, they experience refraction and change in speed as they cross boundaries between different layers of Earth's interior. This causes a shadow zone between 103° and 142° from the earthquake's epicenter. In this region, P-waves are not detected on seismographs.
S-wave Shadow Zone:
S-waves, also called secondary waves or shear waves, travel slower than P-waves and can only propagate through solid materials. They cannot pass through Earth's liquid outer core. As a result, a shadow zone is created beyond 103° from the earthquake's epicenter. In this region, S-waves are not recorded on seismographs.
Information the Zones provide ----------------------------------------------------
Outer Core:
The fact that S-waves do not reach the shadow zone beyond 103° indicates that Earth's outer core is liquid. This supports the theory of a molten outer core composed mainly of iron and nickel.
Inner Core:
The presence of P-waves in the shadow zone beyond 103° but not beyond 142° suggests the existence of a solid inner core. P-waves can only pass through the solid inner core, while they are refracted or absorbed in the liquid outer core.
We can map out the shadow zones and use them to infer the properties and boundaries of Earth's internal layers. Which helps us understand the composition, density, and dynamics of the Earth.
Hope this helps!
PLS HELP ASAP!! 40 POINTS!!
Belief system that started in India in the 500s BC. Happiness can be achieved through removal of
one's desires. Believers seek enlightenment and the overcoming of suffering.
Buddhism
Hinduism
Islam
Christianity
Answers
Answer:
i don't know
Explanation:
GUYS ON TOP KNOWS!
Where is the youngest tectonic plate material found in the Atlantic basin
Answers
Answer: Mid-Atlantic Ridge
Answer:
Where plates move apart, new crustal material is formed from molten magma from below the Earth's surface. Because of this, the youngest sea floor can be found along divergent boundaries, such as the Mid-Atlantic Ocean Ridge.
True or false metamorphism is an important component of the rock cycle
Answers
Answer:
The answer to this is true
Explanation:
It is true because the main components of the rock cycle is metamorphism, sedimentary, igneous.but the point is that metamorphism plays an important role since it can change into sedimentary rocks or igneous rocks and that is basically what most scientist call the rock cycle.
critically evaluate the mechanisms that are enforced to regulate inhumane farming methods
Answers
Many method are enforced to regulate inhuman farming method like ban on rearing of animals in the factory, use of genetic engineering with the help of stems cells etc.
The methods of farming in which inhuman conditions of farming is used which are cruel to animals this type of farming is inhuman and artificial , practice of packing too many animals like pig ,hen, in a closed small space this animals lives in a worst condition and never see sunlight, move a little bit and never got fresh air , live in discomfort every day these animals are not healthy for eating because they are often decreased and injected with antibiotics. there are several method that are used regulate inhuman farming method these are given below
stop consuming factory reared products ,ban on rearing of animal in a factory because it is harmful for our environment.
conclusion : rearing of animals is practiced in many places but now it is regulated by government and the concerned country because it is not only harmful for animals but this kind of practice is also harmful for our environment and human health .
Disclaimer
What are three mechanisms that are enforced to regulate inhumane farming methods?
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How can drought be triggered by physical conditions?
Answers
Answer:
Explanation: When rainfall is less than normal for a period of weeks to years, streamflows decline, water levels in lakes and reservoirs fall, and the depth to water in wells increases. If dry weather persists and water-supply problems develop, the dry period can become a drought.
Stream flows decrease, lake and reservoir levels drop, and the depth of water in wells rises when rainfall is below average for a period of weeks to years. The dry spell could turn into a drought if the dry weather continues and problems with the water supply arise.
What causes draughts?A drought is a time when the weather is drier than usual and there are issues with the water supply. Although the amount of precipitation at a specific region changes from year to year, on average it remains pretty stable across time.
The average annual precipitation in the Southwest's deserts is less than 3 inches. In comparison, the Northwest receives more than 150 inches of precipitation year on average. The soils might dry out and plants can die when there is little or no rain. Stream flows decrease, lake and reservoir levels drop, and the depth of water in wells rises when rainfall is below average for a period of weeks to years.
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please answer fast this is timed
Which of the following organizations created a monopoly and controlled all trade in and out of India in the early 1800s?
A.
the government of Portugal
B.
the Mughal Empire
C.
the British government
D.
the British East India Company
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
D: The British East India Company created a monopoly and controlled all trade in and out of India in the early 1800s.
Hope this helps!
What would planting trees in Africa cause? How would it reduce the climate change there? Answer quick please! ILL GIVE BRAINLYEST
Answers
grade 12 geography research about the informal sector
Answers
The informal sector refers to economic activities that are not regulated by the government and are not subject to taxation or monitoring. It includes a wide range of activities that are typically small-scale and often undertaken by individuals or small groups of people, such as street vendors, domestic workers, and small-scale farmers.
The informal sector is characterized by its flexibility and adaptability, as well as its ability to provide employment and income opportunities for people who may not have access to formal employment. However, it is also associated with low wages, poor working conditions, and a lack of social protections, such as health insurance and retirement benefits.
Therefore, the informal sector refers to economic activities that are not regulated by the government and are not subject to taxation or monitoring.
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With the aid of diagram explain the formation of spring
Answers
With the aid of diagram (source given below) that is attached, the formation of spring are:
(i) As a result of permeable and impermeable rock strata
(ii) Spring formed as a result of a d/y/ke or s/il/l intrusion:
How does Spring Form?(i) In terms of permeable and impermeable rock strata:
Water can flow out of the ground when it reaches the surface where there are rocks that allow water to pass through them and rocks that don't. This usually happens when it rains and some of the water goes into the ground because of gravity. The water goes down through rocks that let it pass until it reaches a layer that doesn't let it pass. If there is a place where water can come out of the ground near where the two layers of soil that let water through and don't let water through meet, then it can flow out as a spring.(ii) In terms of Spring formed as a result of a dy//ke or sill intrusion:
This is when a volcano pushes hot liquid rock into a crack in the ground and it hardens to form a straight or horizontal rock formation. The d/y/ke/sil/l can go through a layer of rock that allows water to pass through it. When it rains, some of the water goes into the ground and moves down because of gravity.The water goes down through rocks that can let water through until it hits a layer that won't let water through. This forms groundwater. The underground water can be stopped or held back by a barrier like a wall or a mound. This blockage takes up space below the ground and can make the water level rise up to the surface of the earth. When the water underground reaches the ground level, it comes out quickly as a spring.Image sources: https://www.waeconline.org.ng/e-learning/Geography/geo327aq8.html
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Springs follow Hooke's Law - they exert a restoring force against deformation and convert kinetic energy to potential energy and vice versa in this process. This ability allows them to return to their equilibrium state after being deformed.
Explanation:A spring is formed by a specific atomic structure that restores its shape when deformed, this being a phenomenon driven by Hooke's Law. When you apply force to a spring, to stretch or compress it, you change its structure and its internal energy. This internal energy is often described as potential energy, while the energy involved in the spring's movement is the kinetic energy.
When you stretch or compress a spring, it exerts a restoring force that works to bring it back to its equilibrium state, and this process involves the conversion of kinetic energy to potential energy and vice versa. In relation to the spring's displacement from its equilibrium state, a term often used in physics, the force exerted by the spring can be calculated using Hooke's law, Fx = −kx.
Also, the spring's potential energy can be calculated using the formula U = kx². This conservation of energy principle allows the energy system involving the spring to remain constant even as the spring oscillates back and forth. The whole process is integrally relevant to understanding how springs work and how energy is conserved in a system involving springs.
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what can create islands
Answers
Answer:
Volcanic eruption's
Explanation:
PLEASE HELP.
9. Which of the following countries. is not part of what was once Mesopotamia?
a. Iraq
b. Turkey
c. India
d. Syria
Answers
A government which holds total power over a country, affecting both the economy & society, is know as a_______state.
Answers
A government that holds total power over a country, affecting both the economy and society, is known as an authoritarian state.
In an authoritarian state, power is concentrated in the hands of a single individual or a small group of individuals who exercise control over all aspects of governance and decision-making. This type of government often suppresses political dissent, restricts civil liberties, and maintains strict control over the economy.
In an authoritarian state, the government's influence extends beyond political matters and into the economic and social realms. The state exerts control over industries, trade, and resources, often implementing central planning and state ownership of key sectors. Individual freedoms and rights may be curtailed, with limited political participation and freedom of expression. Censorship and surveillance are commonly used to maintain control and suppress opposition.
Authoritarian states can have varying degrees of control, ranging from mild to extreme, but they all share the common characteristic of centralized power and limited individual freedoms. These states often prioritize stability and control over individual liberties and democratic processes, leading to significant challenges in achieving political pluralism, economic diversification, and social progress.
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