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
sleet_krkn [62]
3 years ago
6

Recently, astronomers have observed stars and other objects that orbit the center of the Milky Way Galaxy farther out than our S

un, but move around faster than we do. How do astronomers think such an observation can be explained?
Physics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

That scenario can be explained by the idea of the contribution of dark matter on that point.

Explanation:

It can be explained through the idea of dark matter, this one was born to explain why stars (or any object) that were farther for the supermassive black hole in the center of the Milky Way galaxy didn't decrease it rotational velocity as it was expected according to equation 1.

v = \sqrt{\frac{G M}{r}}  (1)

Where v is the rotational velocity, G is the gravitational constant, M is the mass of the supermassive black hole, and r is the orbital radius.

Notice, that If the distance increases the orbital speed decreases (inversely proportional).

You might be interested in
12
Helen [10]

Answer:

wavelength decreases and frequency increase

Explanation:

the higher the wavelength the smaller the frequency , the smaller the wavelength the higher the frequency

5 0
2 years ago
Can the boiling point of water exceed 100c
lisabon 2012 [21]
Superheated water is liquid water under pressure at temperatures between the usual boiling point, 100c (212 F ) and the critical temperature , 374 C (705F) . It is also known as “subcritical water”
Or “pressurized hot water”.
6 0
3 years ago
Why are simple everyday actions considered
Oxana [17]
They create energy ……………….
8 0
3 years ago
Read 2 more answers
What is the speed of sound​
Charra [1.4K]

Answer:it is 343 meter per second in air.

Explanation:

it is 5 times more in liquids than in gases and 15 times more in solids than in gases.In air it is affected by various physical conditions such as pressure,humidity and temperature.

7 0
3 years ago
Read 2 more answers
The force vector A has components Ax = 5 N, Ay = -3 N. The force vector B has
jeka94

Answer:

In the picture.

Explanation:

I hope that it's a clear solution.

5 0
2 years ago
Other questions:
  • How many shells does the element neon have?<br> A. 1<br> B. 2<br> C. 8<br> D. 18
    12·1 answer
  • The engine of a locomotive exerts a constant force of 8.1*10^5 N to accelerate a train to 68 km/h. Determine the time (in min) t
    7·2 answers
  • A block is held at rest against a wall by a force of magnitude F exerted at an angle theta from the horizontal, as shown in the
    6·1 answer
  • The force required to make an object travel along a circular path is:
    7·2 answers
  • In designing circular rides for amusement parks, mechanical engineers must consider how small variations in certain parameters c
    12·1 answer
  • If a plane is traveling at a velocity of 100 km/hr East, and if the wind velocity is 25 km/hr to the East, then what is the velo
    11·1 answer
  • What was one of the main benefits to the use of the icebox for cooling food? Select all that apply. provided a source for cold w
    5·2 answers
  • An object with a mass of 2.0 kg accelerates 2.0 m/s when an unknown force ls applied to it. Wha is the amount of force?
    6·1 answer
  • A 3.0 kg object moving 8.0 m/s in the positive x-direction has a one-dimensional elastic collision with an object of mass, M, in
    5·1 answer
  • 1. The two images below show the area swept out by the same planet during two separate time spans. If the first picture represen
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!