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
stellarik [79]
3 years ago
11

Gravity pushes against all objects, trying to crush it. What pushes against gravity in: a main sequence star, a white dwarf, a n

eutron star, and a black hole?
Physics
1 answer:
ololo11 [35]3 years ago
4 0

Answer:

heat pressure, neutron degeneracy, electron degeneracy,nothing.

Explanation:

In main sequence star, gravity's inward pull is greatly balanced by the heat pressure. In the white dwarf, gravity is mainly balanced by the electron degeneracy pressure that arises from the fact that the electrons are fermions and they obey the Pauli's exclusion principle.  So there is no two electrons that have the same the four quantum numbers.

While in neutron star, the neutron degeneracy pressure obeys the Pauli's exclusion principle that gives rise to the degeneracy pressure and noting pushes against the gravity in the black hole. Therefore the correct option is the heat pressure, neutron degeneracy, electron degeneracy and nothing.

You might be interested in
A bulldozer uses a 500 N force to push a load of dirt 16 m to the worksite. How much work
strojnjashka [21]

Explanation:

Force (F) = 500 N

Distance (d) = 16 m

work done (w) =?

We know that

w = F * d

= 500 * 16

= 8000 Joule.

The bulldozer performs 8000 Joule.

Hope it will help you :)❤

4 0
4 years ago
A news anchor at a city television station was asked by a rural food bank to speak at its annual fund-raiser. Even though the fu
erma4kov [3.2K]

Answer:

Monitoring reader comments and engagements, mini research about the demographics of previous edition, an online survey

Explanation:

The more she understands the background and need of her audience, the better her speech and coherence will be .

Some ways to discover her audience are:

1. Ask the organizers or do a mini research about the demographics of the audiences that are at the previous edition of the annual fund-raiser. Knowing the demographics such as gender, age group, level of education, language,culture etc. will allow her to Know about the audience's interest ad common grounds.

2. Monitoring of comments and engagements about the program can give her incite about the audience

3. A survey can be carried out if the audience are accessible.

6 0
3 years ago
Need help asap please and thank​
tatuchka [14]

Answer:

bus

Explanation:

since the bus is hevier it has more kenetic energy than the cop car. to make it the same energy the bus would either slow down or the cop can speed up.

7 0
3 years ago
Um tanque grande e aberto, com um líquido não viscoso, tem uma fuga 4,5m abaixo da superfície livre do líquido. Qual é, teoricam
kotegsom [21]
naiamlammalamamsksmms
3 0
4 years ago
Three point charges are fixed in place in a right triangle, as shown in the figure.
8090 [49]
Oh gosh oh I see it in my life face and
4 0
3 years ago
Other questions:
  • Iron filings were mixed together with salt crystals. What unique property of iron would be BEST to separate the filings from the
    11·2 answers
  • A 5.00 kilogram block slides along a horizontal,frictionless surface at 10.0 meters per second. for 4.00 seconds. The magnitude
    14·1 answer
  • In a traveling or following spotlight in a musical theater production, the brilliant xenon lamp positioned
    5·1 answer
  • A man pulls on his dog's leash to keep him from running after a bicycle. Which term best describes this example? Select one: A.
    9·1 answer
  • A block of mass 12.2 kg is sliding at an initial velocity of 6.65 m/s in the positive x-direction. The surface has a coefficient
    11·1 answer
  • Maple syrup, which comes from the sap of maple trees, contains water and natural sugars. It's a clear, brown liquid and the suga
    11·1 answer
  • The idea is to get as much EMF produced from the sprinter running through it. If you were the Olympic coach on a year when there
    8·1 answer
  • You are currently getting 26 sales opportunities per day and closing 64% of them. How many sale opportunists per day?
    9·1 answer
  • PLEASE HELP ME!!!!!!!!
    14·1 answer
  • Which of these is an example of Newton’s first law of motion?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!