Why can't the dark matter in galaxies be made of neutrinos?

Answers

Answer 1
A)There are not enough neutrinos to make up all the dark matter.
B) Neutrinos do not have any mass; they interact only through the weak force.
C) We know that dark massive objects such as planets and neutron stars are not made of neutrinos.
Answer 2

Neutrinos travel at extremely high speeds and can escape a galaxy's gravitational pull that s why dark matter in galaxies is made of neutrinos.

What Are Neutrinos?

Neutrinos are incredibly small, almost massless particles that move at speeds close to the light. They are incredibly numerous in the universe and can flow through lead as readily as we do through air. They were created by intense astrophysical events like exploding stars and gamma-ray bursts.

However, the most prevalent particle in the universe is the neutrino. Unbelievably, your body is exposed to about 100 trillion neutrinos every second(opens in new tab)!

It is exceedingly challenging to detect neutrinos due to their tendency to interact with other particles seldom; nevertheless, this does not imply that they never do; rather, the likelihood of any given neutrino interacting with another particle is only very low.

Hence, Neutrinos travel at extremely high speeds and can escape a galaxy's gravitational pull that s why dark matter in galaxies is made of neutrinos.

To know more about Neutrinos follow the link.

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Related Questions

which soil occupies most of the area in Maharashtra​

Answers

Answer: Laterite soil

Explanation:

What type of fault is being demonstrated in the above illustration?
( )
A Strike-slip fault
B Normal fault
C Reverse fault

Answers

It’s a bc it’s an Strike

It is 7:40 pm in Sydney NS.
What time is it in:
St John's?
Prince Rupert?
Toronto?
Thompson?

Answers

Answer:

St John's is 7:19 PM

Prince Rupert is 2:49 PM

Toronto is 5:49 PM

Thompson is4:49 PM

Explanation:

:)

what is the description of this proces:

a) rock surface heats up and expands​

Answers

ANSWER

WEATHERING

Explanation:

draw up a turist profile​

Answers

Answer:

Hi Just Wanna Say “ Long Live XXXTentacion “ If udk who he is he’s a rapper who was shot and killed on June 18 2018 He Is A Legend. Would appreciate it if you liste to him in Spotify

Explanation:

Which of the following best describes the idea of Total War?*
a- The unique cultural identity of the Triple Alliance
b- A war that involves the complete mobilization of resources and people; even if they're
not in the military
c- A state of hostility between opposing individuals and groups
d- The process of assembling troops and supplies - making them ready for any type of
war.

Answers

Answer:

B:- A war that involves the complete mobilization of resources and people; even it they are civiliian

Explanation:

Look at the map below. All of the following climate regions are located in Central Asia except the __________ region.
A. Marine west coast
B. Humid continental
C. Semiarid
D. Arid

Answers

Answer:

Humid Continental

Explanation:

Answer:

A. Marine west coast

Explanation:

Right on Egde 2021

Enlist some places from where gold is mined.

Answers

Answer:

China, Australia, South Africa

Explanation:

About 244,000 metric tons have been mined and most of it came from that top3 countries

Is the oceanic crust above or below the continental crust?

Answers

Answer:

Above

Explanation:

Plant life in wetlands is not
different from plant life In other areas.
True
False

Answers

Answer:

false

hope it is helpful to you

please help! :))) im so stressed

Answers

Answer:

E.

explanation: because I've got a big boy brain

Two organisms that share several classifications level's will be

Answers

Answer:

Closely related; characteristics.

Explanation:

Taxonomy can be defined as the process of naming, classification and description of living organisms such as plants and animals.

Hence, two organisms that share several classification levels will be closely related and have many characteristics in common such as number of legs, eyes, etc.

What is another animal that might have a larger than natural population because of human impact? Explain your reasoning.

Answers

Cows are probably an animal that is overpopulated because of the human species. This is happening because people need cows for what they can offer, such as milk or even food as a result they keep pushing the limits to get the most out of these animals.

Various animals might have a larger than natural population because of human impact; one is a domestic dog.

Through the human activities of using dogs as a pet, the population of dogs might have a larger than natural population.

The reason is simple, the demand for the dogs as pets would make humans breed dogs, thereby ensuring dogs have more births than a natural occurrence.

This is evident in a recent research survey conducted among pet owners.

It was revealed in 2017 that there are about 89.7 million domestic dogs in the United States.

This number revealed a 20 million increase in domestic dogs population compared to 68 million domestic dogs in 2000.

Hence, in this case, it is concluded that some human activities can positively impact the animal population.

Learn more here: https://brainly.com/question/3768323

There are many technologies that reduce the amount of carbon emissions into our atmosphere. Identify some example of these technologies.

Answers

Answer:

The hybrid cars

Explanation:

It reduce the carbon emissions because it use other types of energy such as calorific when the car brakes friction is created and the car motor serves as a converter to electrical energy to take them to the car batteries and put it to use

Which modern technology allows populations to survive extreme droughts and lack of fresh drinking water?

Answers

Answer:

no hablo ingles

Explanation:

ghlxhsiehvrekiwke

What is the absolute location of the equator?​

Answers

Answer:

The Equator is the line of 0 degrees latitude. Each parallel measures one degree north or south of the Equator, with 90 degrees north of the Equator and 90 degrees south of the Equator. The latitude of the North Pole is 90 degrees N, and the latitude of the South Pole is 90 degrees S

Explanation:

What are examples of ways that the British disrespected Indian culture?

Answers

- The British Empire starved India

- Stole from the language of the oppressed

- Indian Railways: "Dogs and Indians not allowed"

- The Imperialist policy of Divide and Conquer

If you were to go north from the Sahel, you'd find __________. If you'd go south from the Sahel, you'd find __________.
Sahara; Nile
tropical grasslands; Sahara
Sahara; tropical grasslands
Nile; Sahara

Answers

This Should Help a Little:

A largely semi-arid belt of barren, sandy and rock-strewn land, the Sahel marks the physical and cultural transition between the continent's more fertile tropical regions to the south and its desert in the north. ... The Sahel also suffers from ethno-religious tensions, political instability, poverty and natural disasters.

can you guys please answer this question for me pleaseeee

Literacy is an important key to learning and communicating.  How can increased literacy rates positively affect quality of life?  

Answers

Answer:More education amongst the people increase the standard of living therefore the quality of life increases

Explanation:

Find c(3) in the sequence given by ​ c(1)=20 c(n)=c(n−1)−17 ​ c(3)=

Answers

Answer:

( -14 ) .................

Explanation:

c(1) = 20

c(2) = c(1) - 17 = 20 - 17 = 3

c(3) = c(2) - 17 = 3 - 17 = ( -14)

11. The two images represent two different methods of raising livestock in the United States. Which of
the following statements most accurately compares these two agricultural practices?
a. Cattle ranching is a more economically friendly way to raise livestock than using feedlots
because less infrastructure is needed
b. Feedlots require more space than cattle ranching does, which reduces profits due to the cost of
the land
C. Consumers prefer to pay higher prices for grass-fed beef than for corn-fed beef raised in
feedlots because of the environmentally friendly practices associated with grass-fed beef.
d. Feedlots can minimize costs associated with livestock production because feedlots do not use
as much space as cattle ranching
e Feedlots require less food consumption by the cows than cattle ranching because the livestock
are grazing on available grass in the pastures

Answers

Answer:d

Explanation:

The two images represent two different methods of raising livestock in the United States. Which are Feedlots can minimize costs associated with livestock production because feedlots do not use as much space as cattle ranching.

What are cattle feedlot and cattle ranching?

Cattle feedlot is a type of animal feeding operation used for animal farming, beef cattle, horses, swine, sheep, turkeys, chicken, or duck prior to slaughter.

Ranching is an activity that is used for raising cattle such as horses, sheep. It covered a lot of areas. Cattle farming is increasing the effect of greenhouse gases and climate change.

Therefore the correct option is D.

Learn more about Cattle feedlot and ranching here:

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Which of the following processes moves rock materials across the surface of the Earth?
A.
compaction
B.
melting
C.
erosion
D.
crystallization

Answers

Answer:

the answer is C. erosion

why does thunder snow happen

Answers

Thundersnow occurs when normal snowstorm clouds begin to develop upward bumps, known as turrets. These turrets are caused by instability within the storm system, combined with a strong lifting mechanism. Thundersnow is a rare winter storm event that occurs when thunder and lightning happen during a snowstorm. ... The ingredients for thundersnow are similar to a thunderstorm that forms in the summertime: warm, moist air rising toward a colder air mass above, creating instability.

How does a human arm compare with an iguana's?

Answers

By comparing a human arm with an iguana arm, we have the following differences.

The human arm is not used in walking, while the iguana arm is used in walking because the iguana is naturally quadrupedal.

The human arm is used in lifting load, while the Iguana arm is not.

However, both human arms and iguana arms have five fingers.

They both have upper and lower arms.

An iguana is a form of a non-venomous lizard.

Hence, in this case, it is concluded that the human arm with an iguana arm has similarities and differences.

Learn more here: https://brainly.com/question/22322376

School Questions

1. What should you do if you feel an earthquake happening?

2. Explain why a rural area might be a safer place to experience an earthquake than a large city.

3. Describe the three kinds of waves that are produced in an earthquake.

Answers

Answer:

Ans.1. If you are indoors, drop and take cover under a sturdy table or other furniture. Hold on to it and stay put until the shaking stops.

Stay clear of items that can fall and injure you, such as windows, fireplaces and heavy furniture.

Stay inside. You may be injured by breaking glass and falling objects if you run outside.

If you are at the coast, walk to higher ground away from the ocean as soon as it is safe for you to move.

If you are driving, move your car as far out of the normal traffic pattern as possible and stop if it is safe. Stay away from structures or objects that could fall on you, such as bridges, overpasses, light posts, power lines or trees. Stay inside your car.

If you are in the mountains, or near unstable slopes, be alert for falling rocks, trees or landslides that could be loosened by the earthquake.

Ans.2.Rural/Urban area: Rural areas have fewer people and fewer buildings so the size of the disaster is smaller. Distance from the epicentre: The closer a town or city is from the epicentre the more damage will be caused because of the strong seismic waves.

Ans. 3 There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.

Answer:

Ans.1. If you are indoors, drop and take cover under a sturdy table or other furniture. Hold on to it and stay put until the shaking stops.

Stay clear of items that can fall and injure you, such as windows, fireplaces and heavy furniture.

Stay inside. You may be injured by breaking glass and falling objects if you run outside.

If you are at the coast, walk to higher ground away from the ocean as soon as it is safe for you to move.

If you are driving, move your car as far out of the normal traffic pattern as possible and stop if it is safe. Stay away from structures or objects that could fall on you, such as bridges, overpasses, light posts, power lines or trees. Stay inside your car.

If you are in the mountains, or near unstable slopes, be alert for falling rocks, trees or landslides that could be loosened by the earthquake.

Ans.2.Rural/Urban area: Rural areas have fewer people and fewer buildings so the size of the disaster is smaller. Distance from the epicentre: The closer a town or city is from the epicentre the more damage will be caused because of the strong seismic waves.

Ans. 3 There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.

Explanation:

Volcanic eruptions are catastrophic events that can lead to loss of life. Which measure should people living near the region of an active volcano take to minimize the loss of life?

Question 10 options:

a.Install devices to monitor the levels of gases emitted by the volcano.


b.Build houses with no vents to avoid contact with lethal gases.


c.Use seismographs to predict volcanic eruptions.


d.Build tall houses with steel reinforcements to withstand tremors.

Answers

Answer:

Option C, Use seismographs to predict volcanic eruptions

Explanation:

People living near volcanoes proximity are at high risk during the eruption period of volcanoes. As the volcano erupts it releases harmful gases and also the hot molten lava flows out of it thereby disrupting every thing that comes in its way.

If people living in such areas are able to get pre information of volcanic eruptions then they can get time to shift to new safer place.

Hence, option C is correct

How many countries is Europe made of

Answers

Answer:

Five European countries rank in the top ten of the world's largest national economies in GDP (PPP). This includes (ranks according to the CIA): Germany (6), Russia (7), the United Kingdom (10), France (11), and Italy (13). There is huge disparity between many European countries in terms of their income.

Explanation:

Answer:

50 Countries

Explanation:

Europe is shared by 50 countries. By the conventional definition, there are 44 sovereign states or nations in Europe. Not included are several countries namely Turkey, which occupies only a small part of East Thrace on the European Balkan Peninsula.

HELP HELP HELP DUE IN 30 MINS

Answers

Answer:

copernicus's idea of the solar system had an idea of the sun in the middle aka heliocentric model, and Ptolemy's model aka the geocentric model has the Earth located in the center

Explanation:

I had this lesson earlier this school year

wait what class is this its very interesting ‘n

why did NASA chose Jezero Crater as the landing site for Perseverance?? (2020)

Answers

Answer

Scientists believe the area was once flooded with water and was home to an ancient river delta.Conceivably, microbial life could have lived in Jezero during one or more of these wet times.

I need help please ASAP

Answers

The answer is (A) 2 2/3
The correct answer is A) 2 2/3
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When SFC cannot fix a problem with a corrupted Windows 10 installation, you can use DISM commands to repair system files. Read Chapter 14 and use perform an online search to help you form your answers.1. What is DISM?2. Where can a technician find DISM on a Windows 10 operating system? (List the exact steps)3. List 2 scenarios when using DISM over SFC would be appropriate.Your initial post should consist of a minimum of 100 words. The posts to your two classmates should be a minimum of 50 words each. What is the total pressure at 60m depth of water? (Round to closest 100kPa) calculate the average kinetic energy of co2 molecules with a root-mean-square speed of 629 m/s. report your answer in kj/mol. (1 j = 1 kg m2/s2; 1 mol = 6.02 1023) Historically demand has averaged 1102 units per week with a standard deviation of 770. The company currently has 2857 units in stock. What is the probability of a stockout? Z = (X u)/o A. 228 % B.98.87 %C. 50% D. 48.87%E. 1.130% Use the Ratio Test to determine the radius of convergence of [infinity]=0x7. (Use symbolic notation and fractions where needed.) Why were the powers of persuasion considered potentially dangerous in democratic Athens? Determine the function f satisfying the given conditions.f '' (x) = 0f ' (4) = 5f (3) = 1f '(x) = ?f (x) = ? What is most closely a central idea of D-Day Prayer? A small car might have a mass of around 1000 kg and a coefficient of static friction of about 0.9.- What is the largest possible force that static friction can exert on this car? (in N)- What is the smallest possible force that static friction can exert on this car?- Describe situations when each of the above cases would occur. why would an array not be ideal for projects with a lot of data Certain Japanese have claimed that Henry Ford's assembly line provided some of the rationale for lean. What features of assembly lines are common to lean systems? under the allowance method of accounting for uncollectible accounts, the adjusting entry to estimate the amount that will become uncollectible affects the accounting equation bya. decreasing assets and decreasing stockhlders equity (expense)b. increasing assets and increasing liabilitiesc. decreasing assets and increasing stockholders equity (revenue)d. increasing liabilities and decreasing stockholders equity (expense) Find the square root of 21046 by division method. The Loetschberg tunnel was built to connect Bern, Switzerland, with the ski resorts in the southernSwiss Alps. This was accomplished by the Swiss using one engineering company that started at thenorth end and another company that started at the south end. Suppose the company at the north endcould drill the entire tunnel in 22. 2 years and south company could do it in 21. 8 years. How long wouldit have taken the two companies to drill the tunnel? 2) (1 pt) Lactose is a monomer composed of galactose and glucose. True or False?3) (1 pt) The presence of glucose facilitates the formation of CAP-cAMP complex, and this in turn allows the RNA polymerase to bind and initiate transcription of the lac operon. True or False? as the standard of living increases, people will demand democracy and more economic freedom and at the same time becom less rationally ignorantT/F Technician A says servosystems are usually tuned by making calculations. Technician B says tuning a servo system involves making gain adjustments. Who is correct? A Only Technician A C. Both technicians 8. Only Technician B D. Neither technician After accounts are adjusted at the end of the fiscal year, Accounts Receivable has a balance of $475,000 and Allowance for Doubtful Accounts has a negative balance of $46,800. Describe how Accounts Receivable and Allowance for Doubtful Accounts are reported on the balance sheet. which halogen is the most easily oxidized? f br i cl Goods are sold for R40 000 cash, record this using accounting equation