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

Author Question: Sunspots are known to be magnetic phenomena because a. Doppler shifts in spectral lines are ... (Read 104 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jul 27, 2018
Sunspots are known to be magnetic phenomena because
 
  a. Doppler shifts in spectral lines are observed.
  b. the Zeeman effect is observed in sunspots.
  c. collisional broadening is observed in spectral lines.
  d. infrared observations indicate that the sunspots are cooler than their surroundings.
  e. observations during eclipses reveal a very extensive photosphere.

Question 2

The greatest inaccuracy in Copernicus's model of the solar system was that the planets
 
  a. traveled in circular orbits with uniform motion.
  b. traveled on epicycles whose centers followed orbits around the Sun.
  c. traveled in elliptical orbits.
  d. were allowed to travel backwards in their orbits.
  e. orbited the Sun.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Fayaz00962

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

a


mynx

  • Member
  • Posts: 555
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

skipfourms123

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Balmer Lines in the Spectrum of a Star Balmer Lines in the Spectrum of a Star
This chart shows the various lines of responsibility and how they differ in presidential and parliam This chart shows the various lines of responsibility and how they differ in presidential and parliam
Listening to the fetal heartbeat with a Doppler device. Listening to the fetal heartbeat with a Doppler device.
Doppler effect Doppler effect
Sunspots Sunspots
Vision-based Magnetic Compass in European Robins Vision-based Magnetic Compass in European Robins
Video: Introduction to Genetics

For a complete list of videos, visit our video library