This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Pulsating variable stars are useful in determining a. the mass of a star for which the distance ... (Read 91 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
Pulsating variable stars are useful in determining
 
  a. the mass of a star for which the distance is known.
  b. the temperature of a star for which we know the luminosity.
  c. the radius of the bulge of our galaxy.
  d. the distance to globular clusters.
  e. the mass of the Milky Way galaxy.

Question 2

How does density divide the stars in the H-R diagram into three groups?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultana.d

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

Density divides stars into three groups. Most stars are main-sequence stars with densities like the Sun's. Giants and supergiants are very-low-density stars, and white dwarfs are high-density stars.


codyclark

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
:D TYSM

debra928

  • Member
  • Posts: 342
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Radial and Transverse Velocities of a Star Radial and Transverse Velocities of a Star
Air Mass Thunderstorms Air Mass Thunderstorms
energy of interaction and distance of particle energy of interaction and distance of particle
Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila Variable expressivity as shown in flies homozygous for the eyeless mutation in Drosophila
Physical distance versus recombination distance on human male and female chromosome 19 Physical distance versus recombination distance on human male and female chromosome 19
Video: Supine Position

For a complete list of videos, visit our video library