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

Author Question: Why do we call dark matter dark? A) It blocks out the light of stars in a galaxy. B) It emits no ... (Read 91 times)

Themember4

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
Why do we call dark matter dark?
 
  A) It blocks out the light of stars in a galaxy.
  B) It emits no radiation that we have been able to detect.
  C) It contains large amounts of dark-colored dust.
  D) It is dark brown or dark red in color.

Question 2

Suppose you use the Southern Cross to determine that the south celestial pole appears 40 degrees above your horizon. Then you must be located at ________.
 
  A) latitude 40 degrees north B) longitude 40 degrees
  C) latitude 50 degrees south D) latitude 40 degrees south


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sarah_brady415

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

D


Themember4

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
Gracias!

scottmt

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Classifying the Spectra of Stars Classifying the Spectra of Stars
The biochemical reactions of near-infrared light The biochemical reactions of near-infrared light
The violation of mores is a serious matter. In this case, it is serious enough that security at an ... The violation of mores is a serious matter. In this case, it is serious enough that security at an ...
The patient is placed between the X-ray tube, which emits a cone-shaped X-ray beam, and the film or ... The patient is placed between the X-ray tube, which emits a cone-shaped X-ray beam, and the film or ...
Touch the test light to the negative (–) terminal of the battery or a good engine ground to check ... Touch the test light to the negative (–) terminal of the battery or a good engine ground to check ...
Evolutionary Stages of Stars Evolutionary Stages of Stars
Video: hGH, Thyroid hormones & Aldosterone

For a complete list of videos, visit our video library