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

Author Question: The _______________ of the moon is the period of time for the moon to complete a cycle of the lunar ... (Read 78 times)

cool

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
The _______________ of the moon is the period of time for the moon to complete a cycle of the lunar phases and is approximately 29.5 days long.
 
  a. sidereal period
  b. saros cycle
  c. synodic period
  d. eclipse season
  e. umbral period

Question 2

The hydrogen lines in spectral type A stars
 
  a. are most narrow for supergiants.
  b. are most narrow for main sequence stars.
  c. can not be used to estimate the luminosity of the star.
  d. are very weak and difficult to see.
  e. are useful in determining the apparent magnitude of the star.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

medine

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


cool

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Excellent

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Full Moon Full Moon
Bereaved spouses studied before loss, at the time of loss, and 18 months after loss show five ... Bereaved spouses studied before loss, at the time of loss, and 18 months after loss show five ...
Life cycle of Toxoplasma. Life cycle of Toxoplasma.
Earth as a System: The Hydrologic Cycle Earth as a System: The Hydrologic Cycle
Replication Cycle of H I V Replication Cycle of H I V
Fetal Period Fetal Period
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library