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

Author Question: On the Sun, what takes approximately 22 years to happen? A) The Sun takes that time to rotate on ... (Read 81 times)

krzymel

  • Hero Member
  • *****
  • Posts: 548
on: Jul 27, 2018
On the Sun, what takes approximately 22 years to happen?
 
  A) The Sun takes that time to rotate on its axis.
  B) The complete sunspot cycle, including magnetic field reversals.
  C) Solar vibrations begin every 22 years.
  D) Solar activities goes from its maximum to minimum.
  E) The corona reaches its maximum temperature and ejects gas every 22 years.

Question 2

What are the characteristics of an open cluster of stars?
 
  A) mostly found above and below the galactic plane
  B) old age and millions of members
  C) a few hundred, mainly main sequence stars
  D) All stars are much more massive than our Sun.
  E) All stars are about the same age and luminosity.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aham8f

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

C


krzymel

  • Member
  • Posts: 548
Reply 2 on: Jul 27, 2018
Excellent

T4T

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Attention and memory are in demand during circle time. Attention and memory are in demand during circle time.
Review Cognitive Changes over the Adult Years Review Cognitive Changes over the Adult Years
Time Line for Evolution of the Universe Time Line for Evolution of the Universe
Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011 Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011
Beak size in finches during dry years increases because of strong selection Beak size in finches during dry years increases because of strong selection
The Cosmic Calendar: Concepts of Time The Cosmic Calendar: Concepts of Time
Video: Properties of macromolecules (Explained with No Audio)

For a complete list of videos, visit our video library