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

Author Question: The RR Lyrae stars all have periods of: A) less than a second. B) several minutes. C) several ... (Read 20 times)

vinney12

  • Hero Member
  • *****
  • Posts: 586
on: Jul 27, 2018
The RR Lyrae stars all have periods of:
 
  A) less than a second.
  B) several minutes.
  C) several hours.
  D) several days.
  E) several weeks.

Question 2

The planet closest in size to Earth is
 
  A) Mercury.
  B) Venus.
  C) the Moon.
  D) Mars.
  E) Pluto.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Hdosisshsbshs

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

B


vinney12

  • Member
  • Posts: 586
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

lkanara2

  • Member
  • Posts: 329
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

All objects in the image are distant galaxies – not stars All objects in the image are distant galaxies – not stars
Classifying the Spectra of Stars Classifying the Spectra of Stars
Evolution of Stars Off the Main Sequence Evolution of Stars Off the Main Sequence
SBTRKT - Look at Stars Ft. Sampha SBTRKT - Look at Stars Ft. Sampha
Get feedback every 5 to 7 minutes about heat intensity. Add or subtract heat barriers to maintain ... Get feedback every 5 to 7 minutes about heat intensity. Add or subtract heat barriers to maintain ...
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Video: How to find out if a population is evolving?

For a complete list of videos, visit our video library