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

Author Question: Why is the bright yellow disk of the Sun, the photosphere, cooler than the areas both above and ... (Read 18 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Jul 27, 2018
Why is the bright yellow disk of the Sun, the photosphere, cooler than the areas both above and below it?
 
  What will be an ideal response?

Question 2

How can you determine the distance to a spacecraft from the time it takes its radio signal to reach Earth?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tennis14576

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 27, 2018
Answer to Question 1

The photosphere radiates light which carries away energy

Answer to Question 2

In a vacuum, all electromagnetic radiation, including radio waves, travel at the same speed: 300,000 km/s. Measuring the time it takes the radio signal to reach us and multiplying by 300,000 km/s gives the distance to the spacecraft.


K@

  • Member
  • Posts: 608
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

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?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Yellow colonies of S. aureus Yellow colonies of S. aureus
Yellow Pages Yellow Pages
Rate of Growth of Brain Areas Rate of Growth of Brain Areas
Group defenses: Cluster of sawfly caterpillars regurgitating fluid (yellow) that predators find unap Group defenses: Cluster of sawfly caterpillars regurgitating fluid (yellow) that predators find unap
An antigen-presenting dendritic cell (blue) interacting with a T cell (yellow) An antigen-presenting dendritic cell (blue) interacting with a T cell (yellow)
Video: Barriers - eye structures, digestive mucosa, respiratory mucosa & genitourinary mucosa

For a complete list of videos, visit our video library