This topic contains a solution. Click here to go to the answer

Author Question: Why is the bright yellow disk of the Sun, the photosphere, cooler than the areas both above and ... (Read 48 times)

K@

  • Hero Member
  • *****
  • Posts: 608
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
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
Gracias!


shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

For a complete list of videos, visit our video library