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

Author Question: Briefly explain why sunspots are cooler than surrounding regions of the Sun, and why they look dark ... (Read 130 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
on: Jul 27, 2018
Briefly explain why sunspots are cooler than surrounding regions of the Sun, and why they look dark in photos.
 
  What will be an ideal response?

Question 2

Emission lines from different ionization states of the same element appear in the same place in the spectrum.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

momolu

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 27, 2018
Answer to Question 1

They are cooler because their strong magnetic fields suppress convection and prevent hotter material from flowing into them. Because they are cooler, they emit less thermal radiation per unit area and therefore look dark in contrast to brighter surrounding regions.

Answer to Question 2

FALSE


mrsjacobs44

  • Member
  • Posts: 500
Reply 2 on: Jul 27, 2018
Gracias!

bitingbit

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

An example of color blindness test. A person with red-green color blindness would not be able to dis An example of color blindness test. A person with red-green color blindness would not be able to dis
Position of the lungs within the thoracic cavity; anterior view illustrating regions of the lungs an Position of the lungs within the thoracic cavity; anterior view illustrating regions of the lungs an
Relationship between levels of COHb in blood and concentration of CO in the surrounding air Relationship between levels of COHb in blood and concentration of CO in the surrounding air
Taken by Hinode's Solar Optical Telescope on January 12, 2007, this image of the Sun reveals th Taken by Hinode's Solar Optical Telescope on January 12, 2007, this image of the Sun reveals th
Inverse Relation Between IQ and Disease. Could this explain the Flynn effect? Inverse Relation Between IQ and Disease. Could this explain the Flynn effect?
Regions of the brain Regions of the brain
Video: Neurosynapse Animation

For a complete list of videos, visit our video library