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elena-14-01-66
14 days ago
15

Which excerpt from Neil deGrasse Tyson’s “Death by Black Hole” best provides evidence that escape from a black hole is impossibl

e? . . . the speed required to escape a black hole is greater than the speed of light itself. . . . light travels at exactly 299,792,458 meters per second in a vacuum and is the fastest stuff in the universe. But if the black hole were 6,000 feet across, then the same man’s feet would be only one-tenth of 1 percent closer to the center than his head, and the difference in gravity—the tidal force—would be correspondingly small. Meanwhile, the stuff within the event horizon has collapsed to an infinitesimal point at the black hole’s center. So black holes are not so much deadly objects as they are deadly regions of space. If you stumbled upon a black hole and found yourself falling feet-first toward its center, then as you got closer, the black hole’s force of gravity would grow astronomically.
English
2 answers:
Gnom [7.5K]14 days ago
6 0
The quotations 'the speed needed to escape a black hole exceeds the speed of light itself' and 'is the fastest substance in the universe' form a logical relationship that helps us deduce that escaping a black hole is impossible. Since the only method to break free from a black hole involves exceeding the speed of light, which is unattainable, escaping from a black hole is therefore not feasible.
Naddika [7.4K]14 days ago
3 0
The correct choice is the first option (A/1). The velocity necessary to break free from a black hole actually exceeds the speed of light. Specifically, light travels at precisely 299,792,458 meters per second in a vacuum, which is the universe's maximum speed.
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Describe in at least 100 words the differences in the way Judge Danforth and Reverend Hale change during the play.
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What makes Jaden in effective group discussion participant select three options
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Hello. The inquiry is incomplete. The complete question reads:

Review the situation concerning a formal dialogue.

Jaden and his teammates are participating in a planning session for an imminent science presentation. The purpose of this meeting is to finalize a design for their project’s display. Jaden has collected images of prior science projects and feedback from past teachers.

What qualities make Jaden an effective contributor in a group discussion? Select three options.

1 He is adequately prepared to thoughtfully address questions.  2 His knowledge about science fairs surpasses that of his peers.  3 He has thoroughly examined materials relevant to the discussion topic.  4 He can back his views with historical data from science fairs.  5 He confidently conveys his views and can take charge of the discussion.

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1, 3, and 4

Explanation:

Jaden recognizes the significance of planning his group’s science presentation, which is why he chose to prepare ahead of the meeting to ensure effective discussion regarding the presentation's structure.

His preparedness indicates he is a valuable participant in group discussions, as all his research aids in developing arguments and addressing questions that arise during the meeting. This can be substantiated by:

  • He is adequately prepared to thoughtfully address questions.
  • He has thoroughly examined materials relevant to the discussion topic.
  • He can back his views with historical data from science fairs.
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C.

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In Operant Conditioning, negative reinforcement is described as an action that aims to avoid negative results or unpleasant stimuli. Aversive stimuli refer to triggers that an individual generally wants to sidestep or escape from. Simply put, negative reinforcement can be understood as a behavior that, although unpleasant, is reduced to achieve a positive outcome.

In the given situation, negative reinforcement occurs because Mark is attempting to change the habit of waking up late to evade his mother's yelling, which he finds unpleasant. Therefore, Mark is working to eliminate this undesirable behavior to achieve a constructive result: his mother might stop scolding him.

Therefore, the correct choice is C.

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