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

Author Question: Has Polaris always been the North Star? A) No, because the Earth's axis slowly changes the ... (Read 17 times)

kaid0807

  • Hero Member
  • *****
  • Posts: 515
on: Jul 27, 2018
Has Polaris always been the North Star?
 
  A) No, because the Earth's axis slowly changes the direction it points.
  B) Yes, because the stars are unchanging.
  C) No, because it is a young star that only formed a few hundred years ago.
  D) No, because the Milky Way blocked our line of site to it for a long time.

Question 2

The rings of Uranus were discovered when it passed in front of a star, and the dark rings occulted the star several times for brief intervals.
 
  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

mmj22343

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

TRUE


kaid0807

  • Hero Member
  • *****
  • Posts: 515
Reply #2 on: Jul 27, 2018
Thank you!


mmj22343

  • Sr. Member
  • ****
  • Posts: 297
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
Balmer Lines in the Spectrum of a Star Balmer Lines in the Spectrum of a Star
Cutaway Model of Earth Cutaway Model of Earth
Center of Mass of a Binary Star System Center of Mass of a Binary Star System
Earth’s Layered Structure Earth’s Layered Structure
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Video: Major Elements in Biological Molecules: Nucleic acids

For a complete list of videos, visit our video library