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

Author Question: Elements above hydrogen and helium come from _____. a. the early stages of the Universe, before ... (Read 49 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
Elements above hydrogen and helium come from _____.
 
  a. the early stages of the Universe, before the formation of stars and galaxies
  b. the collision of neutron stars and black holes
 c. cooling and accretion of molecules in dense molecular clouds
 d. the last phases of stellar evolution and stellar death
 e. matter falling into supermassive black holes

Question 2

The importance of the general theory of relativity lies in its description of ____.
 
  a. acceleration
  b. gravity
 c. mass
 d. space-time
 e. velocity



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vickyvicksss

  • Sr. Member
  • ****
  • Posts: 351
Answer to Question 1

d

Answer to Question 2

b





 

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

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