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

Author Question: The age of stars in a cluster can be determined by A) finding spectroscopic binaries in the ... (Read 55 times)

Medesa

  • Hero Member
  • *****
  • Posts: 507
on: Jul 27, 2018
The age of stars in a cluster can be determined by
 
  A) finding spectroscopic binaries in the cluster.
  B) determining the main sequence turnoff point.
  C) finding pulsating variable stars in the cluster.
  D) counting the number of stars in each spectral class.
  E) fitting the position of the main sequence to the Sun.

Question 2

Which of the following is not a characteristic of the outer planets?
 
  A) They all have rings.
  B) They all have large quantities of gas.
  C) They have very few, if any, satellites.
  D) They are primarily made of hydrogen and helium.
  E) Their orbits are separated by relatively large distances.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zhanghao

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

C


Medesa

  • Member
  • Posts: 507
Reply 2 on: Jul 27, 2018
:D TYSM

LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Pre–Main-Sequence Stars Pre–Main-Sequence Stars
Detached, Semidetached, Contact, and Over-Contact Binaries Detached, Semidetached, Contact, and Over-Contact Binaries
Finding Added Sugars on the Label A food Finding Added Sugars on the Label A food
Determined the magnitude of the magnetic force on the conductor. Determined the magnitude of the magnetic force on the conductor.
finding resultant for the following force combinations finding resultant for the following force combinations
finding the resultant force finding the resultant force
Video: Carbohydrate digestion (brush border enzymes, end products) & Carb absorption (fructose, galactose)

For a complete list of videos, visit our video library