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 128 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
Thanks for the timely response, appreciate it

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

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.

(A) The nine regions of the abdominopelvic cavity. (B) The four regions of the abdomen, which are re (A) The nine regions of the abdominopelvic cavity. (B) The four regions of the abdomen, which are re
Striate Cortex and Regions of Extrastriate Cortex Striate Cortex and Regions of Extrastriate Cortex
Mapping of the abdomen into nine regions Mapping of the abdomen into nine regions
Frontal section through the right side of the skull showing the three principal regions of the ear Frontal section through the right side of the skull showing the three principal regions of the ear
Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ... Explain the assumptions that must be satisfied in order to validly use the one-way ANOVA ...
Functional Regions of the Human Brain Functional Regions of the Human Brain
Video: How to make cDNA Animation

For a complete list of videos, visit our video library