This topic contains a solution. Click here to go to the answer

Author Question: In the 1960s, Maarten Schmidt determined that quasars were very distant objects by A) determining ... (Read 62 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
In the 1960s, Maarten Schmidt determined that quasars were very distant objects by
 
  A) determining how luminous they were.
  B) determining how small the source of light was from its variations in luminosity.
  C) discovering that they were embedded in distant galaxies.
  D) determining their redshifts.
  E) determining their parallax angles.

Question 2

The average length of a solar day is
 
  A) 23 hours 56 minutes.
  B) 24 hours.
  C) 365.25 days.
  D) 12 years.
  E) 26,000 years.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Galvarado142

  • Sr. Member
  • ****
  • Posts: 348
Answer to Question 1

D

Answer to Question 2

B





 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

For a complete list of videos, visit our video library