This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Discuss the evidence that supports the theory that there is a supermassive black hole at the center ... (Read 71 times)

Alainaaa8

  • Hero Member
  • *****
  • Posts: 576
on: Jul 27, 2018
Discuss the evidence that supports the theory that there is a supermassive black hole at the center of our galaxy.
 
  What will be an ideal response?

Question 2

Red light of the visible light spectrum has longer wavelengths than blue.
 
  a. True
  b. False
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meganlapinski

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

There is an intense source of radio energy named Sagittarius A at the gravitational center of the galaxy. The source has been shown to be very smallless than 1 AU in size. The source is also associated with X-Ray and infrared radiation. The connection between massive energy output and very small size is explained best by a black hole.
Stars near Sgr A are observed to be orbiting the object at very high speeds. Using the orbital paths of these stars, the object must have a mass of approximately 4 million solar masses. This much mass could only exist in such a small volume of space as a black hole.

Answer to Question 2

True


Alainaaa8

  • Member
  • Posts: 576
Reply 2 on: Jul 27, 2018
Excellent

marict

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Juglans nigra (Black Walnut tree) lower leaf surface Juglans nigra (Black Walnut tree) lower leaf surface
Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania) Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania)
Common skin signs are often evidence of an illness or disorder. A crust is a dry, serous or ... Common skin signs are often evidence of an illness or disorder. A crust is a dry, serous or ...
Although the Democrats and the Republicans represent slightly different slices of the center, those ... Although the Democrats and the Republicans represent slightly different slices of the center, those ...
Four pieces of evidence that the reticular formation is involved in sleep. Four pieces of evidence that the reticular formation is involved in sleep.
Interaction of RF2 with a UGA stop codon in the decoding center Interaction of RF2 with a UGA stop codon in the decoding center
Video: Proteins Defined, Hierarchy & Composition of Cells

For a complete list of videos, visit our video library