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
mr Goodwill [35]
3 years ago
7

What two types of waves are used to detect black holes​

Physics
2 answers:
Anastaziya [24]3 years ago
6 0

Answer:

Black holes are detected as surrounding material (like gas) is funnelled by the force of gravity into a disk around the black hole. The gas molecules in the disk swirl around the black hole so fast that they heat up and emit X-rays. These X-rays can be detected from Earth.

Explanation:

matrenka [14]3 years ago
6 0

Answer: X rays and gamma rays

Explanation: X rays emitted by the materials falling on the black holes and change the form because of very high temperature. These rays can be detected by using a specialized telescope.

Black holes also have very intensive effects on the neighbohoods around tehm by emitting very powerful gamma rays. These rays influence the nearby stars by devouring and spurring the growth of new stars.

You might be interested in
Homework help?
bogdanovich [222]
C. unbalanced is the correct answer for newton's first law.
8 0
3 years ago
Read 2 more answers
Volcanoes that have fast flowing liquid lava will be narrow like a river
vodomira [7]

Answer:

Shield volcanoes, the third type of volcano, are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building a broad, gently sloping cone of flat, domical shape, with a profile much like that of a warrior's shield.

Explanation:

8 0
3 years ago
As objects grow farther apart, what happens to the force of gravity between them?
Papessa [141]
It decreses Decreases
8 0
3 years ago
Two round concentric metal wires lie on a tabletop, one inside the other. The inner wire has a diameter of 21.0 cm and carries a
Burka [1]

Solution :

a). B at the center :

     $=\frac{u\times I}{2R}$

Here, one of the current is in the clockwise direction and therefore, the other current must be in the clockwise direction in order to cancel out the effect of the magnetic field that is produced by the other.

Therefore, the answer is ANTICLOCKWISE or COUNTERCLOCKWISE

b). Also, the sum of the fields must be zero.

Therefore,

$\left(\frac{u\times I_1}{2R_1}\right) + \left(\frac{u\times I_2}{2R_2}\right) = 0$

So,

$\frac{I_1}{d_1}= \frac{I_2}{d_2}$

$=\frac{16}{21}=\frac{I_2}{32}$

$I_2=24.38 $ A

Therefore, the current in the outer wire is 24.38 ampere.

3 0
3 years ago
Read 2 more answers
When a falling object reaches terminal velocity, the net force acting on it is
dexar [7]
Pretty sure that it is 0.
3 0
3 years ago
Other questions:
  • 10. A girl pulls a wagon along a level path for a distance of 44 m. The handle of
    6·1 answer
  • The mass of a moving object increases, but its speed stays the same. What happens to the kinetic energy of the object as a resul
    12·2 answers
  • (a) What is the escape speed on a spherical asteroid whose radius is 500. km and whose gravitational acceleration at the surface
    14·1 answer
  • Which of the following element has seven total valence electrons? Your answer: argon helium oxygen bromine
    8·1 answer
  • Determine the area of a rectangle having a length of 41.6 cm and a width of 2.3 cm
    8·1 answer
  • What happens when the fuel in a car engine combustion?​
    7·1 answer
  • HELP I'll MARK BRAINLY
    13·2 answers
  • You measure my life in hours and I serve you by expiring. I’m quick when I’m thin and slow when I’m fat. The wind is my enemy.
    5·1 answer
  • Pls help its about baseball and energy <br><br><br> (one question)<br><br><br><br> '^'
    11·1 answer
  • A straight line with a negative slope on a velocity-time graph indicates which of the following?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!