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Naddika [18.5K]
4 years ago
5

How do scientists look for black holes in the sky

Physics
2 answers:
elena55 [62]4 years ago
6 0

To find black holes in space, scientists use telescopes to study visible light, X-rays, and radio waves. When gas orbits a black hole, it gets very hot and starts emitting X-rays and radio waves. Through special telescopes, the area surrounding the black hole looks really bright.

pentagon [3]4 years ago
5 0

Scientists look through special telescopes and the area surrounding the black hole is suppose to look really bright.

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Light is an example of something that travels in waves. Light waves come in many different varieties, and can be seen as many di
Anuta_ua [19.1K]

Answer:

Option (B)

Explanation:

Light is a form of electro-magnetic waves. This light wave has distinct range of wavelength that allows it to form different colors of light. This means that the color of the light produces depending on the amount of wavelength it comprises.

The visible light ranges from Violet to Red, and this is observed as different colors when each of these electromagnetic waves strikes our eyes at a certain angle. The violet light has the shortest wavelength of about 410 nm, where the red light has the highest wavelength of about 650 nm.

Thus, the correct answer is option (B).

6 0
3 years ago
Read 2 more answers
The primary coil of an ideal transformer has 100 turns and its secondary coil has 400 turns. if the ac voltage applied to the pr
Nana76 [90]

The formula used in calculations relating to transformers is:

<span>Secondary voltage (Vs)/ Primary voItage (VP) = Secondary turns (nS)/ Primary turns (nP)</span>

 

Substituting the given values to find for Vs,

Vs / 120 V = 400 turns / 100 turns

<span>Vs = 480 V</span>

6 0
4 years ago
Please help me look at the image below
djverab [1.8K]
I can’t see anything
7 0
3 years ago
Froghopper insects have a typical mass of around 11.1 mg 11.1 mg and can jump to a height of 55.3 cm. 55.3 cm. The takeoff veloc
Molodets [167]

Answer:

a = 2710m/s²

Explanation:

See attachment below.

4 0
3 years ago
Read 2 more answers
Please solve the Problem.
babymother [125]

From the graph, the average acceleration between 5.0 s and 8.0 s is 2.33 ms^2.

<h3>What is acceleration?</h3>

The term acceleration has to do  with the change in velocity with time. We can see that the graph shown is a graph of velocity against time, the slope of the graph is the acceleration.

Thus, the average acceleration between 5.0 s and 8.0 s can be read off from the graph as 20 m/s - 13m//8.0 s - 5.0 s = 2.33 ms^2.

Learn more about acceleration:brainly.com/question/12550364

#SPJ1

8 0
2 years ago
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