« previous next »

Author Question: What happens when a main-sequence star exhausts its core hydrogen fuel supply? A) The entire star ... (Read 77 times)

Coya19@aol.com

  • Hero Member
  • *****
  • Posts: 601
on: Jul 27, 2018
What happens when a main-sequence star exhausts its core hydrogen fuel supply?
 
  A) The entire star shrinks in size.
  B) The core shrinks while the rest of the star expands.
  C) The core immediately begins to fuse its helium into carbon.
  D) The star becomes a neutron star.

Question 2

The total amount of light from a star-planet system drops when the planet goes behind the star.
 
  Indicate whether the statement is true or false


babybsemail

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Areas of differing productivity and diversity in a wetland. (a) Typha dominates core habitats, while Areas of differing productivity and diversity in a wetland. (a) Typha dominates core habitats, while
Proper Motion of Barnard’s Star Proper Motion of Barnard’s Star
The distance between the centerline of the main bearing journal and the centerline of the ... The distance between the centerline of the main bearing journal and the centerline of the ...
An angiogram that illustrates narrowing of the carotid artery (see arrow), the main pathway of blood ... An angiogram that illustrates narrowing of the carotid artery (see arrow), the main pathway of blood ...
PGC-1 and SIRT1 control the reprogramming of fuel utilization pathways in response to fasting PGC-1 and SIRT1 control the reprogramming of fuel utilization pathways in response to fasting
Sea star Sea star
Video: Helper T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library