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

Author Question: Light from Proxima Centauri takes 4.2 years to reach Earth. Indicate whether the statement is ... (Read 69 times)

biggirl4568

  • Hero Member
  • *****
  • Posts: 551
on: Jul 27, 2018
Light from Proxima Centauri takes 4.2 years to reach Earth.
 
  Indicate whether the statement is true or false

Question 2

What role did Frank Drake play in SETI?
 
  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

kingdude89

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 27, 2018
Answer to Question 1

True

Answer to Question 2

Frank Drake developed the equation that attempts to provide the number of technological, intelligent civilizations now present in the Galaxy by breaking it up into 7 different factors that might be individually analyzed.


biggirl4568

  • Member
  • Posts: 551
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

aruss1303

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

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.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

An overview of photosynthesis: cooperation of the light reactions and the Calvin cycle. An overview of photosynthesis: cooperation of the light reactions and the Calvin cycle.
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
Interactions of Light and Matter Interactions of Light and Matter
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay? How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
Earth Atmosphere Earth Atmosphere
Reflection of light rays Reflection of light rays
Video: Hormonal regulation of blood pressure - RAA system

For a complete list of videos, visit our video library