Describe the different hypothesis (Nebular Hypothesis, Planetesimal Theory, and Tindal Theory) explaining the origin of solar system.
Answer:
Nebular Hypothesis:
According to this theory, the Sun and all the planets of our Solar System began as a giant cloud of molecular gas and dust. Then, about 4.57 billion years ago, something happened that caused the cloud to collapse. This could have been the result of a passing star, or shock waves from a supernova, but the end result was a gravitational collapse at the center of the cloud.
From this collapse, pockets of dust and gas began to collect into denser regions. As the denser regions pulled in more and more matter, conservation of momentum caused it to begin rotating, while increasing pressure caused it to heat up. Most of the material ended up in a ball at the center while the rest of the matter flattened out into disk that circled around it. While the ball at the center formed the Sun, the rest of the material would form into the protoplanetary disc.
The planets formed by accretion from this disc, in which dust and gas gravitated together and coalesced to form ever larger bodies. Due to their higher boiling points, only metals and silicates could exist in solid form closer to the Sun, and these would eventually form the terrestrial planets of Mercury, Venus, Earth, and Mars. Because metallic elements only comprised a very small fraction of the solar nebula, the terrestrial planets could not grow very large.
Planetesimal Theory:
The planetesimal theory, put forth by Viktor Safronov in 1941, explains planet formation in the early solar system from accretion of small bodies, growing in size as gravity attracted more and more objects. As the small bodies orbit, their gravity is very weak and they must rely on non-gravitational forces to stay together, such as radiation pressure and the emission of thermal photons.
Growth of the small planetesimal caused the strength of its gravity to increase. Growth to approximately one kilometer in size allowed the gravity of planetesimals to attract objects to them, increasing their size to seeds for planetary formation.
Collisions were common during the formation of the solar system and planets. Planetesimals continually collided and destroyed each other, but some planetesimals were able to withstand the impacts and grow, eventually forming into planets.
In contrast, the giant planets (Jupiter, Saturn, Uranus, and Neptune) formed beyond the point between the orbits of Mars and Jupiter where material is cool enough for volatile icy compounds to remain solid (i.e. the Frost Line). The ices that formed these planets were more plentiful than the metals and silicates that formed the terrestrial inner planets, allowing them to grow massive enough to capture large atmospheres of hydrogen and helium. Leftover debris that never became planets congregated in regions such as the Asteroid Belt, Kuiper Belt, and Oort Cloud.
Tidal Theory:
involving the approach near the Sun of another star. This set up tidal forces, and the instability of the Sun resulted in part of its mass being torn off to form the planets. The theory was proposed by Sir James H. Jeans (1877–1946) and Sir Harold Jeffreys.
What was the idea of allowing the 13 colonies to govern themselves without strict control of British laws known as?
Answer:
Salutary Neglect
Explanation:
Hope this helps1
The Fifteenth Amendment to the United States Constitution a.ended the institution of slavery and indentured servitude throughout the United States. b.prohibited federal and state governments from denying any citizen the vote because of race. c.guaranteed women the right to vote in federal elections but did not allow them to vote in state elections. d.made the income tax constitutional for the top 30 percent of wealthy white Americans but not black southerners.
b.prohibited federal and state governments from denying any citizen the vote because of race.
The Fifteenth Amendment to the United States Constitution prohibited federal state governments denying any citizen the vote because of race. The appropriate response is option B.
What is Fifteenth Amendment?The right to vote cannot be denied based on "race, color, or prior condition of servitude," according to the Fifteenth Amendment to the United States Constitution. With this constitutional amendment, former slaves and other African American men were given the right to vote.
In 1870, the 15th Amendment was ratified into the United States Constitution in an effort to safeguard the right of Black males to vote following the Civil War.
Despite the amendment, several discriminatory tactics were utilized in the South, especially within a few years, to prevent Black individuals from exercising their right to vote.
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2 Points
Which statement would the Greek philosophers Aristotle and Plato be most
likely to agree with?
O A. A country should be governed by one leader with absolute power
in order to maintain social stability.
O B. A country's leader should be allowed to remove those who speak
against him.
O C. A country's laws must apply to all citizens to prevent the rise of
tyranny
O D. A country's laws should be derived from commonly held religious
beliefs.
The correct answer is C) A country's laws must apply to all citizens to prevent the rise of tyranny.
Which statement would the Greek philosophers Aristotle and Plato be most likely to agree with?
Answer:
A country's laws must apply to all citizens to prevent the rise of tyranny.
Plato and Aristotle considered wisdom as a virtue that makes humans happy. For this to happen, humans have to trust and rely on their interior, not the exterior. That is why they opposed the kinds of laws that acted against the citizens. They never supported any form of tyranny.
These illustrious Greek philosophers were renowned for their concepts about the virtue of rulers and the different forms of government.
Why were women in Wyoming first to achieve suffrage?
Answer:
they recognized the role played by women in border settlements, others only to strengthen the conservative voting force, and another part was that people hoped more women would come to settle there since they got voting rights
PLS HELP 40 points
If you had the opportunity to fight against machismo, what would be some of the actions you would take to combat this social phenomenon?
Answer: I don't know random stuff that others would do.
Explanation:
what was the flaw in sending 1500 soldiers to Cuba?
Answer:
The error was in sending 1500 soldiers to Cuba.
A brigade of 1,500 CIA-trained troops assaulted the beach in Cuba's Bay of Pigs. Kennedy planned a secret expedition to overthrow Fidel Castro in order to stem the spread of communism across the globe. But the subsequent five days saw one of the worst military disasters in U.S. history.
Under the codename Operation Zapata, President Kennedy was given the go-ahead just days after his inauguration. The main force would head into Matanzas, establishing a defensive position. United Front representatives would be sent from South Florida to create a provisional administration. The plan's success relied on Cubans' ties to the invaders.
Following these orders, some 20,000 soldiers advanced towards the shore, thus Castro's air force continued to control the skies. However, six Cuban aircraft were left intact after the initial strike. During the operation, plans for a tactical maneuver backfired, and the Cuban air force was not wiped out. The Bay of Pigs incident had a lasting impact on the Kennedy administration. The administration began Operation Mongoose, a plot to disrupt and destabilize the Cuban government and economy, including the prospect of assassinating Fidel Castro.
Explanation:
¿Qué nos plantean las fuentes C y D sobre los avances en salud de nuestro país en el contexto del bicentenario?
Answer:
what type of language is this ??
What effect did the French and Indian War have on the British and their American colonies?
President Kennedy and Soviet premier Nikita Khrushchev: Group of answer choices engaged in a dangerous game of tactics and bluffs because the US wanted the Soviets to remove missile sites from Cuba decided which non-aligned nations would ally with the US and which would ally with the Soviets together planned and carried out the Bay of Pigs invasion became good friends after their Vienna summit meeting
Answer:
Engaged in a dangerous game of tactics and bluffs because the US wanted the Soviets to remove missile sites from Cuba
Explanation:
President Kennedy and Soviet premier Nikita Khrushchev were both engage in negotiating a peaceful outcome to the crisis related to the missiles.
Relationships between the U.S and the Soviet Union was a complex that led frequent hostile power rivalry over the years. The political differences of these two countries often prevented them from leading a mutual arrangement on issues like the Cuban crisis that brought them close to the war. Both nations have advance technology and military progress with the missile race and nuclear weapon.
Both agreed after meeting to remove missiles from respective places. Kennedy removes the missiles in Turkey and Italy where Khrushchev remove the missiles in Cuba.
When was Jhon f Kennedy born
Answer:
He was born on May 29, 1917 :)
Explanation:
Who was Ignatius Loyola?
a nobleman who joined the church and founded the Jesuits
a monk who traveled to Asia as a missionary
a pope who called the Council of Trent
a Protestant who convinced the Catholic Church to reform
Answer:
Who was Ignatius Loyola Answer
Explanation:
Ans) a
Nobleman Who Joined The Church And Founded The Jesuits In Order In 1534 Was Born 1491....
how does a filibuster protect the minority party?
Answer:
The filibuster in the U.S. Senate protects the rights of Senators to debate and amend legislation,
Explanation:
Which of these affect real investment value? Check all that apply
Answer:
you may need to add a picture to this question for me to answer it
The answer is A, B, and E.
A) fees and expenses
B) inflation
E) taxes
Please help!!! 30 points !!!
Now, choose one of the three scenarios from Part A of this task. Write a speech as if you were a member of the House of Representatives
or some other government official speaking to a town hall meeting in your district. In your speech, highlight this conflict and issue for your
constituents. Also list potential solutions to the issue and discuss the consequences if no solution is found. Finally, explain your own
opinion, in your role as a US representative, on how to resolve the situation. Be sure to support your viewpoint with evidence,
Answer:
Dear and appreciated, from the chamber of representatives, members of the house. With honor and praise we have tried to resolve, little by little, the conflicts generated here in the district. As a representative of this state, I present myself here at City Hall to announce a new bill, which further strengthens the second amendment: we will strengthen the militia action here in the state of Michagan, where we have seen delinquency, robberies, the violence growing and becoming an unprecedented public safety problem, a calamity for the entire state. In addition, it maintains the right to carry a firearm, as long as the case is for the defense of property, property and self-defense. Every citizen who needs, in situations of robbery, to defend himself using a weapon, will not answer in justice for this, when it is proved that the use of the weapon was in self-defense. In order not to reach that extreme, it has also been proposed in the House of Representatives, a bill that reinforces militia action on all streets and corners of Detroit. These militias will be at the disposal of the population and the citizens, fighting crime and delinquency. We can find no other way to control this situation. We approve this law, for the sake of all in the community, before we witness more deaths and innocent blood shed.
Explanation:
i submitted it and got 100
Which event was most responsible for Richard Nixon's announcement of the end of the Indian termination policy?
The Native americans’ peaceful, 19-month occupation of Alcatraz Island.
In 35 words or fewer, identify a potential drawback to only recording
history orally.
Answer:
The history is not preserved as long as it would if it did not exist only in people's memories and passed down verbally. If it was written down, it would be preserved longer.
Explanation: Hope this helps!
There is a potential drawback to record history orally. As when obtaining factual data, such as specific dates, places or times, people rarely remember such details accurately.
What is Oral History?Oral history means recording, preservation and interpretation of historical information, based on the personal experiences and opinions of the speaker.
When using Oral History as a source material, several problems exist. As Oral Histories rely on the memory of individuals the person being interviewed may not accurately recall factual information such as names or dates, and they may exaggerate.
A narrator can also conceal/hide important information. Some information or facts may be forgotten or omitted since oral traditions depend heavily on human memory.
So, these were potential drawbacks to recording History orally.
Hence, the answer was given and explained above.
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Hlo gd evening all
what is non-public proprietary
Answer:
hlo ,The muscles which move without our volition are called involuntary muscles. For example, the cardiac muscle in the heart and the smooth muscles are involuntary muscle.
Explanation:
good evening
Which of these Fair Deal reforms did not happer?
O A. A higher minimum wage
B. Providing more social security benefits
O c. Public housing for the poor
O D. A national health insurance program
Who was appointed to write the Declaration of Independence?
James Madison
Thomas Jefferson
John Locke
Thomas Paine
Mark this and retum
Save and Exit
Next
Submi
Answer:
Thomas Jefferson
Explanation:
"A committee of five delegates was appointed by the Second Continental Congress to write the Declaration of Independence on 11th June 1776.
The committee of five decided that Thomas Jefferson would write the first draft of the document."- History of My America Article
Hope this helps!
Answer: The answer is:
B: Thomas Jefferson
Explanation:
Edge 2023
Hope this h :}
What areas in Eurasia developed advanced civilizations first? What role did geography play in that development?
Areas like the Indus Valley Civilization (India), Egypt and China developed advanced civilizations first. Yes, geography played an important role. All of these civilizations had large rivers to support agriculture, Indus river in Indus Valley Civilization, Nile river in Egypt and Yellow river in China.
What are some hooks for a persuasive essay on Outsourcing?
How do i make a hook?!? PLEASE ITS DUE IN 10 MIN!! I NEED HELP!!!
Explanation:
I hope it helps you in your class because i am a kid
What was Joseph Stalin's role in the Russian Revolution
Which person is considered part of a market?
A. Jeremiah, who is completing his homework
B. Liz, who is drawing a picture of her cat
C. Matt, who is paying for guitar lessons
D. Erin, who is resting before going for a jog
Answer:
C. matt, who is paying for guitar lessons
Answer: C. Matt, who is paying for guitar lessons.
O domínio da metrópole portuguesa sobre sua colônia na América submeteu os colonos a condições impostas que, na maioria das vezes, oportunizaram apenas os interesses de Portugal. A exploração excessiva que era realizada por Portugal teve seus reflexos de descontentamento a partir do final do século XVII. Neste, ocorreu apenas um movimento de revolta, mas foi ao longo do século XVIII que os casos se multiplicaram. Entre os principais movimentos nativistas podemos destacar a Revolta dos Beckman, a Guerra dos Mascates, a Guerra dos Emboabas e a Revolta de Filipe dos Santos. Sobre essas revoltas, pesquise em diferentes fontes e preencha o quadro abaixo com as informações solicitadas.
Answer:
A Revolta dos Beckman de 1648 ocorreu no
Maranhão, seu motivo foi a foi a insatisfação
coletiva com a Companhia de Comércio do
Maranhão, que controlava os preços dos
produtos na região, prejudicando a todos os
maranhenses de São Luís, prejudicando os
agricultores locais.
Os irmãos Beckman, fazendeiros ingleses,
iniciaram uma revolta que conseguiu
atacar as instalações da CIA de Comércio
do Maranhão e a capital da Capitania,
apossando-se dos suprimentos. Porém a
Coroa Portuguesa logo enviou reforços que
prenderam os responsáveis, punindo-os.
A Guerra dos Mascates aconteceu em
1710 na província de Pernambuco, sendo
que mascates eram os comerciantes, que
confrontaram os senhores de engenho.
Pode-se dizer que houve uma vitória
simbólica dos mascates e a anistia dos
envolvidos pela coroa portuguesa.
Explanation:
hope it helps u
PLEASE HELP ASAP!!
Select ALL the correct answers
Which two factors led to Latin Arnerican revolutions?
A.
the successful French Revolution
B.
the inwasion of Spain by the French
C.
the invasion of North America by England
D.
the successful Spanish Revolution
Answer:
The successful French Revolution and the successful Spanish Revolution.
I Hope its right if not so advance sorry :)
which military leader wwas tied to the ship so he would not fall off during a battle
Answer:
drink my pee
Explanation:
because.
Answer:
gjjg
Explanation:
Plsss helpp , marking brainliest as well
The order would be 7000 BC then 6000 BC, then AD 250 and finally AD 450.
who was the first prime minister of Germany
Answer:
Angela Merkel
was
the
first
prime
minister
of
japan
Part of the president job involves foreign affaires which include working with ambassadors to foreign countries how do these ambassadors get their jobs
Answer: a
Explanation:
