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

Author Question: Because of their mass, the threshold temperature for electrons is: A) higher than that of ... (Read 33 times)

bcretired

  • Hero Member
  • *****
  • Posts: 525
Because of their mass, the threshold temperature for electrons is:
 
  A) higher than that of neutrons.
  B) lower than that of protons.
  C) higher than that of protons.
  D) lower than that of hydrogen.
  E) higher than that of hydrogen.

Question 2

It was the distribution of ________ that showed Harlow Shapley we were no where near the center of the Milky Way in the 1920s.
 
  A) planetary nebulae
  B) emission nebulae
  C) open clusters
  D) globular clusters
  E) supernova remnants



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

reelove4eva

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

B

Answer to Question 2

D




reelove4eva

  • Sr. Member
  • ****
  • Posts: 332

 

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?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

For a complete list of videos, visit our video library