Author Question: When a stellar iron core collapses, large numbers of neutrinos are formed, and then: A) they form ... (Read 33 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
When a stellar iron core collapses, large numbers of neutrinos are formed, and then:
 
  A) they form the neutron star.
  B) they are absorbed by electrons to produce positrons.
  C) they are captured to form heavy elements.
  D) they are captured to form light elements.
  E) they immediately pass through the core and escape to space.

Question 2

Beyond the formation of iron, nuclear energy can be produced only by:
 
  A) fusion of still heavier elements.
  B) ionization of the radioactive nuclei.
  C) fission of heavy nuclei back toward lighter ones.
  D) gravity.
  E) the dark force.



Swizqar

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

E

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Swizqar

  • Sr. Member
  • ****
  • Posts: 357

 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

For a complete list of videos, visit our video library