ASTRONOMY HELP!!! I'm doing a project on the Elephant's Trunk Nebula, and I can't find the exact date that it was discovered. Please help me find the exact date it was discovered!! Thanks <3

Answers

Answer 1
Answer:

Answer:

The Elephant's Trunk Nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth.[1] The piece of the nebula shown here is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD 206267) that is just to the east of IC 1396A. (In the Spitzer Space Telescope view shown, the massive star is just to the left of the edge of the image.) The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays.

The Elephant's Trunk Nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr) stars that were discovered in infrared images in 2003. Two older (but still young, a couple of million years, by the standards of stars, which live for billions of years) stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity.

The combined action of the light from the massive star ionizing and compressing the rim of the cloud, and the wind from the young stars shifting gas from the center outward lead to very high compression in the Elephant's Trunk Nebula. This pressure has triggered the current generation of protostars.[2][3]

Explanation:


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A woman is concerned that if she does poorly on a math exam, she will confirm the stereotype that women are not good at math. What is likely to happen and why?A) She will do poorly on the exam because of stereotype threat.
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D) She will do well on the exam because of the self-fulfilling prophecy.

Answers

A)She will do poorly on the exam because of stereotype threat.

How did geography affect the development of city states in ancient Greece?

Answers

states that were around rivers usually developed better, because they had access to somewhat quick trade and fish, where as people on mountains had a harder time for trade of getting food 

Answer:

the mountains caused isolated communities to form separate governments

Explanation:  

the peninsula was surrounded by water and mountains making it hard to expand and keeping them isolated.  communities remained small and close.

City states were formed and each city-state developed its own laws, practices, and way of life

All of the following were factors in the failure of the United States to join the League of Nations after the First World War EXCEPT:(A) fear of further involvement in foreign wars.
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(E) the influence of the Soviet Union within the League.

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C) The other answer choices are reasons why the U.S did not join the L.o.N

In 1823, the Monroe Doctrine was established mainly because the United States wanted toa. keep control of Alaska and Hawaii.
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The answer is d. warn Europe against any further colonization in Latin America. At this point, the United States was now asserting its authority in the continent.  They believe that it was their destiny to settle within these territories and at that point, they were determined that Europe would no longer colonize anymore land in the Americas.

The Delhi sultanate imposed which of the following forms of government?Elite oligarchy
Centralized rule
Feudal vassalage
Absolute monarchy

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The Delhi sultanate imposed Feudal vassalage forms of government. The correct option is C.

What was Delhi Sultanate?

"The twenty-year-old sultan of Beder is a small man in the nobles' sphere of influence. The nation is ruled by Central Asians, who also fight in war.

That passage clarifies the solution. Because it doesn't state that small groups of people rule a nation, A is untrue and this does not describe an oligarchy.

B is incorrect because the centralized rule would be equivalent to a direct dictatorship. D is incorrect because the Delhi Sultanate did not practice absolute monarchy as a form of government. The feudal system, or feudal vassalage, was utilized by the Delhi Sultanate.

Therefore, the correct option is C, Feudal vassalage.

To learn more about Delhi Sultanate, visit here:

brainly.com/question/11366945

#SPJ2

Answer:

The actual answer is C.) feudal vassalage

Explanation:

"The sultan (of Beder) is a little man, twenty years old, in the power of the nobles. Khorassanians [Central Asians] rule the country and serve in war. There is a Khorassanian Boyar [Central Asian prince]". That quote explains the answer. This doesn't describe oligarchy because where does it say where small groups people have control of a country so A is not true. Centralized rule would correlate to direct dictatorship so B is not correct. D is not correct because absolute monarchy is not a form of government back from the Delhi Sultanate. The Delhi Sultanate used the feudal system which correlates to feudal vassalage making C, the correct answer.

Please help I really need help with this I’ll give brainliest

Answers

Answer:

N/A

Explanation:

I don't think you can do it with the information you've given... is there anything about how their heights compare in the problem? I see a part of it is cut off

Answer:

See below

Explanation:

V = h*pi*r^2

V = h*pi*6² = h*pi*36

V = h*pi*3² = h*pi*9

36 cm^3 / 9 cm^3

= 4

Therefore, the volume of beaker A is 2² times the volume of beaker B

EDIT

However if beaker A is twice the height of beaker B (let's say A is 4 cm high and B is 2 cm high) then the factor between the resulting volumes would be 8.

V = h*pi*6² = 4*pi*36 = 452 cm^2

V = h*pi*3² = 2*pi*9 = 56 cm^2

452 cm^2 / 56 cm^2

= 8

Therefore, the volume of beaker A is 2³ times the volume of beaker B