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Vinvika [58]
2 years ago
8

In your own words, explain what a black hole is and how it forms by integrating the information from the two sources.

English
2 answers:
ryzh [129]2 years ago
7 0

According to the General Theory of Relativity, a black hole is a region of space from which nothing, not even particles that move at the speed of light, can escape because their velocity is less than the escape velocity of these infinitely dense celestial bodies . This is the result of the deformation of space-time, caused after the gravitational collapse of a massive star with at least 30 times the mass of the Sun in a supernova, and that soon after, will disappear, giving place to what Physics calls singularity, the heart of a black hole, where space-time ceases to exist. A black hole starts from a spherical surface called the event horizon, which marks the region from which, if something to cross, can not return. The black adjective in black hole is due to the fact that it was assumed that it did not reflect any part of the light that reaches its horizon of events, acting as if it were a perfect black body in thermodynamics, however, there is currently the theory of radiation Hawking, who briefly predicts that black holes are not really black, and emit radiation due to quantum effects such as quantum fluctuations.

san4es73 [151]2 years ago
4 0

explanation of what a black hole is in my own words

explanation in my own words of how a black hole moves

information from the Tyson essay

information from the "A Tour of ASASSN14-li" video

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Answer the following questions as you analyze the structure of Mandela’s speech. What is the purpose of Mandela’s speech? How do
kirza4 [7]

The purpose of Mandela's speech was not simply to address the nation as their new president and give gratitude to those who put him there but instead to make a statement that South Africa was going to make immense changes and unify to show the world what the nation could truly do in order to become a land of hope. There are a few purposes to this speech, one being to unify the nation of south Africa by bringing the blacks and the whites together. The speech was also used to motivate and inspire the people of South Africa. I know this because I've studied Mandela's life in one of my subjects at school.

The audience for this speech was the people of South Africa. He addresses every one he possibly can to broaden his audience so that every South African hears his message.

Nelson Mandela

"I stand here before you not as a prophet but as a humble servant of you, the people."

Mandela repeats the word negotiations as he wants to encourage and push for more negotiations - a thing that will bring them closer to freedom.

8 0
2 years ago
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cestrela7 [59]

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6 0
2 years ago
Read 2 more answers
Select the correct answer. Lyra and Donna are testing the two-way radios they built for their high school science project. Lyra
klio [65]

Answer:

yra is 22 meters above the entrance.

The radios work until Donna is 50 meters away from the entrance.

At that moment, Lyra, Donna, and the entrance form a right triangle.

The hypotenuse is the actual distance between Lyra and Donna.

          Distance  =  √ (22² + 50²)

                        =   √ (484 m² + 2,500 m²)

                        =    √ (2984 m²)

                        =        54.63 meters.

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4 0
2 years ago
Which two sentences correctly describe elegies?
NNADVOKAT [17]

Answer:

The first section of an elegy expresses sorrow for the deceased.

The last section of an elegy expresses consolation and comfort.

Explanation:

Elegies are narrative poems written after the death of a person. This poem acts as a means to mourn the death or passing of that person, and acts as a mournful song for the deceased.

Elegies are normally written in such a way that the beginning part expresses the pain and sorrow felt by the speaker at the death of the person. It then moves on to express consolation and comfort towards the end of the poem. Most famous elegies are "O Captain! My Captain!" by Walt Whitman written for Abraham Lincoln and W.H. Auden's "In Memory of W.B. Yeats".

4 0
2 years ago
In your opinion, why are people often disappointed by the movie versions of their favorite books? Check any of the boxes that yo
Zina [86]

Answer:

The story lines have been shorted, and important details have been left out

Explanation:

Since a movie can be aroun 1-2 hours maybe a little more the plot has to be at a more fast pace.

6 0
2 years ago
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