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

Author Question: The Drake Equation is attempting to find A) the number of planets with life on them in the whole ... (Read 71 times)

a0266361136

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
The Drake Equation is attempting to find
 
  A) the number of planets with life on them in the whole universe.
  B) the number of technological civilizations in the Galaxy at a given moment.
  C) the number of stars that might have planets orbiting them.
  D) the number of planets in the Milky Way Galaxy.
  E) the total number of terrestrial planets ever created.

Question 2

How could we determine the amount of interstellar dust between us and a distant star?
 
  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

s.meritte

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

The spectral lines would give us the temperature and luminosity of the star, but if much dust were present, the light would appear redder than the spectral class would let us expect. Also, the fainter it looks, compared to its estimated luminosity, the more dust is absorbing its light in transit.


a0266361136

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Personality over the Life Span Personality over the Life Span
Estimated Number of New Sexually Transmitted Infections Estimated Number of New Sexually Transmitted Infections
A water spray bottle is an excellent diagnostic tool to help find an intermittent engine misfire ... A water spray bottle is an excellent diagnostic tool to help find an intermittent engine misfire ...
Uncompetitive inhibitor equation Uncompetitive inhibitor equation
How to find all angles of a triangle when only the side lengths are given How to find all angles of a triangle when only the side lengths are given
To find derivative us the chain rule To find derivative us the chain rule
Video: Pressure volume relationships - Normal inspiration and expiration

For a complete list of videos, visit our video library