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 41 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
Wow, this really help

jackie

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Meal Time Meal Time
Although average brain size increases gradually though time in H. erectus, individuals with small br Although average brain size increases gradually though time in H. erectus, individuals with small br
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev This portrait of Thomas Jefferson is considered an accurate likeness, painted when he was thirty-sev
Radiative forcing expresses change in energy input over time Radiative forcing expresses change in energy input over time
Did parallel evolution happen in epiphytes, halophytes and rheophytes? Did parallel evolution happen in epiphytes, halophytes and rheophytes?
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library