What condition is necessary on earth to see eclipses of stars in binary star systems?

Answers

Answer 1

The line of sight from earth to the star system must be very close to the orbital plane of the stars to see eclipses of stars in binary star systems.

Each star in a double star system, also known as a binary star system, gravitationally pulls in the second star, which circles around the pair's centre of mass. Each star will be seen to eclipse the other once every orbital period if their orbital plane is edge-on to Earth. Eclipsing binary is the name for such a system.

It is also referred to as an eclipsing variable star because in an eclipsing binary system, the total amount of light fluctuates on a regular basis. When one of the two stars in an eclipsing binary is eclipsed, the light curve of the system experiences a deep minimum, and when the other star is eclipsed, the light curve experiences a shallower minimum.

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Related Questions

describe the changing nature of this sandy beach if you were to walk from the sand dunes toward the sea

Answers

If you were to walk from the sand dunes toward the sea on a sandy beach, you would likely notice a number of changes in the nature of the beach.

As you first approach the sand dunes, the sand may be loose and granular, and you may notice a variety of plants and wildlife in the area. The sand dunes themselves may be tall and steep, and may be covered in vegetation such as grasses or shrubs.

As you walk closer to the water, the sand may become more compact and harder, and the dunes may become less steep and more gradual. You may also notice that the vegetation becomes less dense, as the salt and wind from the sea can make it difficult for plants to survive.

As you approach the water's edge, the sand may become wet and packed down, and you may see evidence of the tide's movement, such as tide pools or seaweed. The water may be clear and calm, or it may be rough and choppy depending on the weather conditions.

As you move further into the sea, the sand will disappear and will be replaced by rocks, coral reefs or other forms of marine life. The water will become deeper and the sea creatures will become more diverse and abundant. Depending on the location, you may also encounter waves, currents, and tides that create a dynamic and ever-changing environment.

Overall, the sandy beach will change from a relatively stable and protected environment with a rich biodiversity on the dunes side to a dynamic and ever-changing environment with a less diverse but rich in marine life on the sea side.

Climate Change challenges the law because:
a. The law responds to static definitions and map lines that move slowly through the process, yet climate causes species, wetlands, and coastlines to move fast.
b. Climate change needs to be addressed by local, state, federal, and international law.
C. The emission of greenhouse gasses are separated by significant time from the harm they cause.
d. All of the above

Answers

Climate Change challenges the law because d. All of the above. Climate change poses many challenges to the law.

Climate change poses significant challenges to the law because it causes species, wetlands, and coastlines to move rapidly, while the law responds to static definitions and map lines that move slowly through the process. Additionally, climate change needs to be addressed by local, state, federal, and international law, as it is a global issue that requires a coordinated response. The emission of greenhouse gasses is also separated by significant time from the harm they cause, which makes it difficult to attribute cause and effect and hold parties responsible.

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Types of government
1. How are democracies and dictatorships different?
In a democracy, people have a say in government, While in a dictatorship they don't
In a dictatorship, People elect a leader, while in a democracy they elect representatives
In a democracy, People elect their leaders, while in a dictatorship they only elect representatives.
2. How are dictatorships and totalitarian governments related?
Both dictatorship and totalitarian governments have kings.
A dictatorship is the opposite of a totalitarian government
A totalitarian government is an extreme form of dictatorship
3. Which is an example of a dictatorship?
South Korea
North Korea
Iran
4. How are parliamentary monarchies and constitutional monarchies similar?
Both have monarchs whose power is restricted in some way
Both have a document that sets out limits to the monarch's power
Both have monarchs who do not have to abide by any laws or policies
5. In a theocracy, which person is most likely to hold political power?
A business leader
elected leader
religious leader
6. Which is considered a theocracy?
Cuba
Iran
Finland

Answers

1. Democracies and dictatorships are different by

In a democracy, people have a say in government, While in a dictatorship they don't. The answer is option 1.

2. Dictatorships and totalitarian governments are related in the sense that A totalitarian government is an extreme form of dictatorship. The answer is option 3.

3. The example of dictatorship from the options is North Korea. The answer is option 2.

4. Parliamentary monarchies and constitutional monarchies are similar in the aspect of Both have a document that sets out limits to the monarch's power. The answer is option 1.

5. The person who is most likely to hold political power in theocracy is the religious leader. The answer is option 3.

6. Iran is considered a theocratic nation. The answer is option 2.

Democracy

Democracy is a type of government in which the people play active role in choosing their representatives. So it is the government of the people, by the people and for the people.

Dictatorship

It is a form of government where by a person or small group of people have absolute power. These people run the government without the consideration for the constitution.

Monarchies

Monarchies are people who rule the people with absolute power. They have undivided sovereignty.

Theocracy

It is a type of government in which the religious ruler govern the people. These people are regarded as divinely guided.

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What river runs through the center of hungary, into serbia, and then runs along the border between romania and bulgaria?

Answers

Answer:

The Danube River

Explanation:

The Danube has been an important river route for centuries. Known in history as one of the borders of the Roman Empire, the river flows along the borders of ten countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova and Ukraine.

What are 7 human activities that affect the environment?

Answers

They both have an impact on global temperatures. Modification. A forest's many fruit trees provide shelter to a wide range of birds and other animals.

The temperature has been affected in the same way as it was earlier by both global warming and the ice age-related climate changes. An immediate shift in environmental circumstances is what is meant by adaptation. An ecosystem that is rich in species of all kinds is thought to be biodiverse. Biodiversity is made up of species richness and diversity of life forms. The diagonal line that depicts the rise in net diversity and the increase in species diversity best captures this relationship. The pioneer species are those that arrive first in the area. Short-term alterations are those that have an instant, dramatic impact on the earth and last for two to three days. "Ozone hole,".

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what is the highest navigable lake in south america?a. Lake Titicacab. Lake Eriec. Lake Michigan dd. Lake Ontarioe. Huron Lake

Answers

The highest navigable lake in south America is Lake Titicaca.

The highest navigable lake in South America is Lake Titicaca, or Lago Titicaca in Spanish, which is 3,810 meters above sea level. To the east and west, it crosses the boundary between Bolivia and Peru.

The elevation of Titicaca fluctuates throughout a few of years in South America. The lake level often drops throughout the dry winter months while rising over the rainy season. The smaller one is in the southeast and is called Lake Huiaymarca in Bolivia and Lake Pequeo in Peru. The larger one is in the northwest and is called Lake Chucuito in Bolivia and Lake Grande in Peru. It was formerly believed that Titicaca Lake in South America was steadily stagnating, but recent studies seem to refute this and reveal a more or less predictable cycle of rise and decrease.

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Order the steps in secondary enrichment. tems (4 items) Drag and drop into the appropriate area)

- Igneous activity ceases after producing ore-bearing deposits
- Groundwater flows through an ore deposits and leaches out metals
- New one minerals are precipitated in new location
- the ore-bearing deposits cools entirely.

Answers

The steps in secondary enrichment are:

Igneous activity ceases after producing ore-bearing deposits

the ore-bearing deposits cools entirely.

Groundwater flows through an ore deposits and leaches out metals

New one minerals are precipitated in new location

A crucial step in the process of ore formation is secondary enrichment. Since the valuable ore minerals in this instance do not instantly precipitate from a cooling magma, this method is known to be secondary.

The secondary or consecutive deposition of metals which are dissolved as sulphates in waters seeping through the oxidised mineral zone close to the surface results in a natural upgrading of underground sulphide deposits. The phenomena is especially prevalent in semi-arid or dry areas.

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from what landforms do most rivers in northern europe originate?

Answers

In Northern Europe, the landforms that most rivers originate are from the mountains.

What Are Landforms?

A landform is basically the shape of an earth's surface. Landforms can be divided into four main components, namely hills, plateaus, plains, and mountains. There are also various types of minor components of landforms, such as basins, valleys, canyons, and buttes. This landform can also be in various other forms, such as rivers which usually originate from the mountains. Rivers are usually formed from the top of a mountain where there is stagnant water to create a path on the mountain and over time it forms a downward path due to the force of gravity. This also happens in Northern Europe where most rivers in there originate from the mountains.

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Is Freud's theory of dreams true?

Answers

Despite the theory's notoriety and its influence on other psychological ideas, it has recently lost favor and been thoroughly refuted by contemporary dream scientists.

What is dreaming?

A dream is a collection of ideas, thoughts, and experiences which frequently occur suddenly and spontaneously in the mind during specific sleep stages. The average length of a dream is between five to twenty minutes, however the dreamer can perceive a significantly longer duration. An average person dreams for two hours each night. The nature and function of dreams have piqued curiosity in science, philosophy, & religion throughout recorded history. The first application of dream interpretation in psychotherapy dates back to the third millennium BCE with the Babylonians. Even earlier than that, the ancient Sumerians used it. Oneirology is the term used in science to describe the study of dreams.

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Which type of metamorphic rock has bands or strips?

Answers

Answer:

Gneiss ( is a metamorphic rock with foliation that presents as alternating bands of dark and light minerals throughout the rock. This type of foliation is referred to as gneissic banding.

Explanation:

compose a short prayer thanking and asking the lords guidance in using your intellect and free will

Answers

The prayer of intellect refers that, The prayers are made by the mind and they are telling them, It is the supreme intelligence. By which they penetrate and illuminate the embraces.

What is religion?

Religion is commonly defined as a social-cultural system of specified behaviors and practices, morals, beliefs, worldviews, texts, sanctified places, prophecies, ethics, or organizations that generally relate humanity to supernatural, transcendental, and spiritual elements; however, there is no scholarly agreement on what precisely constitutes a religion.

As in the prayer of the intellectual, It refers to that, The knowledge and the understanding I want, As seek your wisdom, so as they can walk in the path you lay before me.

Therefore, In the prayers of the intellect refers that, Grant me a penetrating mind to understand, a retentive memory

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What is the name of these islands?

Answers

…Palau’s Coral Reefs

The name of these islands is Raja Ampat Islands.

Raja Ampat is an archipelago located off the northwest tip of Bird,s Head Peninsula in West Papua. These are located on the island of New Guinea in Indonesia.

It comprises more than 600 small islands with four major isles: Walgeo, Misoo, Bantana, and Salawati. It also has a smaller island named Kofiau.

It forms part of the Coral Triangle which contains the world's richest marine diversity. It is popularly known for its biodiversity and coral reefs. The islands are a part of the Vogelkop-Aru lowland rainforests ecoregion and are home to many species of mammals, reptiles, and insects.

It is a popular tourist attraction and is one of the best spots for scuba diving, snorkeling, and birdwatching.

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What are the two social organization in the country?

Answers

Individualism and collectivism. Societies can be structured in a collectivist or individualistic manner, and this can have an impact on social interactions, political and legal institutions, and economic development.

Any of a number of a social organizations known as collectivism view the individual as being subject to a larger social collectivity, such as a state, country, race, or social class. Individualism, which emphasises the rights and interests of the person, can be contrasted with collectivism.

Individualistic workplaces value and honour employees for their unique talents and capabilities. With this organisational culture, employees want to be recognised and treated for their own characteristics. This concept encourages creativity and innovation, challenges employees to perform at their highest level, and raises employee engagement.

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What would provide evidence that a fossil belonged to a member of the genus Australopithecus?

Answers

Au.anamensis, the earliest member of the genus Australopithecus, was discovered in northern Kenya near Lake Turkana in Kanapoi and Allia Bay.

What are facts about Australopithecus?

Australopithecus afarensis is the most well-known species, thanks in part to the renowned "Lucy" skeleton (A.L. 288-1) and in part to the fact that most skeletal parts from male and female, juvenile and old individuals are known. A. is central to our knowledge of hominid evolution. The present agreement on Homo's early development is the result of a 30-year-old shift away from the idea of a single, gradually evolving lineage flowing inexorably from some Pliocene austral pith to modern humans. The species was first described in 1995, following an examination of solitary teeth, upper and lower jaws, skull pieces, and a tibia discovered at the discovery locations.

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What is the highest navigable lake in south america?

Answers

Lake Titicaca is the highest navigable lake in South America.

Lake Titicaca is the world's highest navigable lake with a height of about 12,500 feet (3,810 meters) above sea level. It is located in the Andes Mountains of South America. This lake is the second largest lake in South America after Maracaibo covering 3200 square miles and extending from northwest to southeast direction.

The strait Tiquina separates the lake into two parts, the smaller in the southeast and the larger in the northwest. About 25 rivers empty their waters in the Titicaca, the largest being the Ramis.

The lake's level fluctuates seasonally. It rises during the rainy season and dries up during the dry winter months. It has a regular cycle of rise and fall

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Steve lives in a country which claims to have been the first to adopt Christianity as a state religion. In which country does Steve live?
A.
Georgia
B.
Armenia
C.
Ukraine
D.
Belarus

Answers

Answer:

B.Armenia

Explanation:

Armenians adopted Christianity way back in the 4th century due to St. Thaddeus and St. Bartholomew.

Steve lives in Armenia

Question 5 of 15
Which region of the world is most closely connected to the northern coast of
Africa?
O A. The Americas
B. Southeast Asia
C. Europe
D. Australia
SUBM

Answers

Answer:

C

Explanation:

Europe is above Africa

Migration occurs as a result of push and pull factors.truefalse

Answers

Answer: True

Explanation: This is true because push factors can cause people to move, whether it's being banned, lack of jobs, poverty, or religious or political persecution, war, or another reason to leave a country. The pull factors attract people to migrate, because people may look for a better life, such as a new job, higher income, better education, freedom, better society, or a reason to move to a country for better "privileges". I hope this helps!

(Will give brainliest)How has Europe adapt to their lack of natural resources?

Answers

HOPE IT HELPS

MARK AS BRAINLIEST

Europe has limited deposits of oil and natural gas, which are drilled for energy and fuel. Russia has some of the largest oil deposits on the planet, although most of them are in the remote Asian part of the country. Done Easy

Which of the following disciplines studies the origin and evolution of planet Earth over the past 4.6 billion years

Answers

Astronomy's field of cosmology examines the beginnings and development of the universe, from the Big Bang to the present and into the future.

The definition of cosmology given by NASA (opens in new tab) is "the scientific study of the large scale properties of the universe as a whole." Cosmology is the study of the universe's structure.Cosmology is the branch of physics that deals with the study of the physical origins and how the universe evoluate .It also study the nature of the Universe on a large scale properties how the universe started and how it was structured.

Cosmology is the study of the universe's beginnings, development, structure, and future. It also covers a broad range of cosmological research.Cosmologists are those who conduct cosmological research. The area of physics known as cosmology is concerned with the investigation of the universe's physical beginnings and course of evolution.

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How did changes to the railroad helped American industries grow?

Answers

Answer: By providing fast, cheap transportation.

Explanation: Because of the big new changes to railroads, it made transportation easier, faster, and cheaper. Meaning that if the changes to railroads made it easier for people to travel long distances, it helped industries grow.

What are the human activities that cause air pollution Class 8?

Answers

With the unchecked growth of economic activity, particularly in cities, with the rise in the improper disposal of tailing from the sewage system, sanitation,  is the primary cause of water and air pollution.

Another factor mentioned is the population's improper disposal of trash, which includes throwing items into streams out of a complete lack of environmental awareness. The four effects of air pollution on the human body are as follows: Itching and redness in the eyes: This is a fairly common sign of air pollution that is easily observed in humans. The inflammation in the eyes is what causes the redness and itching. Coughing: Inflammation in the bronchi can also lead to coughing. Coughing commences when the mucosa that has been secreted comes into contact with some foreign substances. Sneezing: When dust particles come in contact with the nasal passage's mucosal secretion, sneezing results. Nausea: Gases that generate air pollution can make some people feel queasy.

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The Sumerian civilization thrived in part because it developed:
A.early vehicles with wheels.
B.the first unified religion.
C.a written code of laws.
D.powerful iron weapons.

Answers

The Sumerian civilization thrived in part because it developed early vehicles with wheels. Hence, option A is appropriate.

What is the meaning of Sumerian Civilization?

Between the Tigris and Euphrates rivers, in the Mesopotamia region of something like the Fertile Crescent, was where the Sumerian Civilization was first established. Sumerians are regarded as the founders of civilization as it is understood by modern humans. They are renowned for their breakthroughs in language, governance, architecture, and more.

The earliest recorded civilization, Sumer, was founded in southern Mesopotamia, between the Euphrates and Tigris rivers, in what is now southern Iraq, from Baghdad towards the Persian Gulf. Sumer was the site of this Sumerian civilization. Following that is a brief discussion of Sumerian culture.

Hence, option A is correct.

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What is south Chile called

A. Patagonia
B. Pascua
C. Antartida
D. Valparaiso

Answers

Answer:

The answer is D. Valparaíso

An incandescent light (glowing tungsten filament) produces:

Answers

An incandescent light (glowing tungsten filament) makes a continuous spectrum, with the peak giving the temperature of the filament.

Because the light source in an incandescent light bulb is a metal filament, the spectrum it creates is continuous. The dark regions of the universe give off a continuous spectrum. The incandescence that causes a tungsten filament bulb to emit light results in a continuous spectrum of light.

Continuous spectrum are produced by hot, dense gases or solid objects. Due to the wide range of wavelengths they release radiation at, the spectra seem smooth and continuous. Visible light is only a relatively small portion of the emissions from incandescent lamps. Much more of it is released as infrared.

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what makes a person want to be in that city?

Answers

Answer:

There's several things that go into making a person want to go to a new city, The sightseeing, the landmarks, family, friend's, schooling, job's, opportunities and way more

Explanation:

(PLEASE ANSWER QUICKLY- worth 10 pts!)
Use complete sentences to explain how global wind patterns such as the polar easterlies in the southern hemisphere would be impacted if Earth stops spinning.

Answers

If the Earth did not rotate on its axis, the atmosphere would only circulate between the poles and the equator in a simple back-and-forth pattern.

What influence do global wind patterns have?

Temperature variations, particularly the differential in heating at the equator and poles, and the Earth's rotation affect the worldwide atmospheric circulation pattern. By transferring heat and water, winds shape regional climate and impact everyday weather.

If the Earth didn't spin on its axis, the atmosphere would merely move back and forth between the equator and the poles.

If the Earth had not been rotating and remained stable, the atmosphere would have merely drifted quietly back and forth between the equator, which is a low-pressure zone, and the poles, which are high-pressure zones. Moving air, on the other hand, is bounced, just as the Earth spins.

The air retreats to the right in the Northern Hemisphere and to the left in the Southern Hemisphere, resulting in curved routes rather than predictable and straight loops. Therefore, This deflection is known as the Coriolis effect.

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about how often is a full moon observed from earth’s surface?

Answers

A full moon can be observed from Earth’s surface about once every 29.5 days.

It takes the Moon about a month to complete one orbit around Earth (27 days, 7 hours, and 43 minutes for our Moon to complete one full orbit around Earth). The synodic month (during which the moon goes through its phases) lasts 29.5 days, which is almost exactly a full month. Thus, the full moon occurs once every calendar month. But, if the full moon occurs inside the first two days of a particular month, then a second full moon may occur within the same month.

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Most of africa’s political boundaries were originally drawn by?

Answers

European nations colonized a large portion of Africa between the 1800s and 1900s. Most African nations' borders were established by these European colonizers.

The divisions frequently did not correspond to the political or ethnic groups that were already present in those areas. Europe is to the northeast of Africa. Europe can be divided into eastern, western, northern, and southern regions due to its size. Still, everything is in Europe.

The Median Line, or the line connecting locations that are situated at equal distance from both coastal states, was calculated by Marine Regions and designated as the international border.Unless a treaty or agreement between coastal areas specified borders at sea. Many nations have maritime borders, or boundaries created by the sea.

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BRAINLIEST!! 50 points please hurry! really need help im in the test!!!!

Answers

Answer:

1 - Ireland

2- United Kingdom

3- The Netherlands

4- Belgium

5- France

6- Spain

7- Switzerland

8- Italy

9- Greece

10- Austria

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