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

Author Question: Spiral arms are thought to be sites of ________, based on the observations newly formed stars and ... (Read 122 times)

Kthamas

  • Hero Member
  • *****
  • Posts: 546
Spiral arms are thought to be sites of ________, based on the observations newly formed stars and interstellar dust lanes in and around these features.
 
  Fill in the blank(s) with correct word

Question 2

Hubble's constant is constant in
 
  A) time.
  B) space.
  C) space and time.
  D) our Galaxy but different in others.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

hanadaa

  • Sr. Member
  • ****
  • Posts: 339
Answer to Question 1

star formation

Answer to Question 2

B



Kthamas

  • Hero Member
  • *****
  • Posts: 546
Both answers were spot on, thank you once again




 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

For a complete list of videos, visit our video library