1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
laiz [17]
3 years ago
15

Elliptical galaxies have no (1 point) spiral arms. central nucleus. stellar density. interstellar gas.

Geography
2 answers:
Tju [1.3M]3 years ago
7 0
1. As far as I remember, the answer should be: Elliptical galaxies have no spiral arms. Elliptical galaxy has a shape of ellipsoid, every massive elliptical galaxy contains a supermassive black hole at the center. And unlike the spiral galaxy, it has no spiral arms.

2. If my memory serves me well, Hubble’s law is used to determine distances between galaxies. Hubble's law describes how far the galaxies move away from each other and from the Earth. It means that Universe is expanding.

3. I am completely sure that top-down theory <span>suggests that galaxies formed when massive protogalactic clouds fragmented into smaller gas clouds that then formed into individual galaxies. 

4. I think that correct answer looks like this: </span>Astronomers’ ever­expanding knowledge of the universe has coincided with the development of the cosmic distance scale, a collection of indirect distance measurement techniques.

5. I am definitely sure that barred spiral galaxies are characterized by a long stretch of stars that extends out beyond the galactic disk. Barred spiral galaxies have big spiral arms which are formed because of the strong compression wave which triggers star formation on the edge of the spiral arms.

6. In my opinion the answer is: The recessional motions of the galaxies prove that the cosmos is not steady and unchanging. It leads us to Hubble's law that I've mentioned before. It proves that galaxies are always in motion.

7. Astronomers are able to measure changes in the rate of universe expansion by observing distant supernovae. In a simple words, supernova is a big explosion of a massive star. After that new bright star appears.

8. According to its definition, protogalactic clouds that have large amounts of angular momentum may develop into spiral galaxies. There are a huge concentration of the stars and gas clouds in the spiral arm. So it's logical that protogalactic clouds can develop in to spiral galaxies because of certain conditions.

9. According to what I have mentioned before about Hubble's law, the answer should be: T<span>he galaxy clusters distances are expanding. Universe is constantly expanding because of the galaxies' movement.
</span>
10. The Milky Way is an example of spiral galaxies. Our galaxy has several spiral arms and we can see that there are the stars and the gas clouds concentrated in these arms. It's the main characteristic of spiral galaxy.

motikmotik3 years ago
4 0

Answer:

dust

Hubble's constant

Local Group

Dark matter is massive enough to produce a gravitational redshift and gravitational microlensing in light from nearby stars or galaxies. The mass of visible matter also can be compared to the total mass of a galaxy or cluster. This invisible portion of the total mass is called dark matter.

In an expanding universe, objects are moving away from Earth, so the light they emit would have a redshift as observed from Earth. In a decelerating universe, light would have no redshift. Light would have a blueshift in a collapsing universe because all objects in that type universe would be moving toward each other.

Explanation:

You might be interested in
Which tribes were allies of the Spanish?
Stolb23 [73]

Answer:

Tlaxcalans

Explanation:

7 0
4 years ago
The vernal equinox occurs in March in the Northern Hemisphere.<br><br> True<br> False
Kryger [21]

Answer:

True

Explanation:

The vernal equinox are the two days in the year in which the sun is exactly above the Equator, one for each hemisphere.

In the Northern Hemisphere, it happens when the sun crosses the Equator going North, marking the beginning of the spring in this hemisphere. It happens in March. So this affirmative is True

5 0
4 years ago
Tipo de turismo de itaipu
NeX [460]

Answer:

Cabe destacar que están establecidas tres tipos de visitas a la Central Hidroeléctrica: turísticas, especiales y las técnicas. Las visitas especiales consisten en un recorrido por el interior de la represa, por aproximadamente dos horas, para lo cual se dispone de guías especializados.

4 0
3 years ago
Which churches began as a result of the First Great Awakening? Presbyterian and Anglican Quaker and Lutheran Catholic and Purita
zvonat [6]

Answer:

Baptist and Methodist.

Explanation:

The First Great Awakening was a period of spiritual renewal that occurred during the mid-18th century. This period also saw a great deviation from the Catholic belief system and the emergence of more Protestant sect religious churches such as the Baptist and the Methodists.

This spiritual revival and awakening began as a result of the oppressive nature of the Catholic Church of England. Beginning in the American colonies,  the religious prosecution led to the revival and emergence or founding of a different Christian belief path such as the <u>Baptists and the Methodist Churches.</u>

8 0
4 years ago
The creation of the ussr occurred as a result of which of the following events?
Rus_ich [418]

Answer:

D. The Russian Revolution

Explanation:

The Soviet Union, whose official name was the Union of Soviet Socialist Republics, was founded in 1922 following the victory of the Bolsheviks in the Russian Revolution. The Revolution itself occurred in 1917 and resulted in the end of the period of the Russian Tsars. The Soviet Union played an important role in both World War II and the Cold War. After this latter conflict the USSR was dissolved and the former republics associated with it became independent nations.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What information do geologists use to classify volcanoes?
    13·1 answer
  • Find the distance between the points given.<br><br> (2, 5) and (6, 8)
    9·1 answer
  • Which of these is most associated with austria? watches, perfume, or mozart
    15·1 answer
  • What percent is it ???
    11·2 answers
  • Is the prime meridian at 0 degrees latitude 0 degrees longitude or 180 degrees latitude
    15·2 answers
  • Describing the location of a place by its relationship to nearby places is using
    12·1 answer
  • How do you give a brainllest or what ever its called
    5·1 answer
  • do right angle vectors of magnitude 7 units and 24 units is combine what the magnitude of the resultant ​
    13·1 answer
  • Which of the following is not an example of a perceptual region? A. the Middle East B. Michigan C. Tornado Alley D. The Bible Be
    5·1 answer
  • Which choice tells the two main ways minerals are classified?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!