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

Author Question: When white light passes through a cool cloud of gas, we see A) visible light. B) infrared light. ... (Read 171 times)

rlane42

  • Hero Member
  • *****
  • Posts: 594
on: Jul 27, 2018
When white light passes through a cool cloud of gas, we see
 
  A) visible light.
  B) infrared light.
  C) thermal radiation.
  D) an absorption line spectrum.
  E) an emission line spectrum.

Question 2

If we had sent a radio signal to an advanced civilization in 2006 which is located in the zeta reticuli star system approximately 39 light-years away and the signal was immediately replied to, when would the reply arrive back at Earth?
 
  A) 2084
  B) 2012
  C) 2045
  D) 2039


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

A


rlane42

  • Member
  • Posts: 594
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

LVPMS

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Irish Red and White Setter Irish Red and White Setter
The cells in blood; A, red blood cells (erythrocytes); B, platelets (thrombocytes); C, white blood c The cells in blood; A, red blood cells (erythrocytes); B, platelets (thrombocytes); C, white blood c
Why Different Constellations Are Visible at Different Times of the Year Why Different Constellations Are Visible at Different Times of the Year
Frederic Edwin Church conveyed the romantic sensibility in Twilight in the Wilderness (1860). The cl Frederic Edwin Church conveyed the romantic sensibility in Twilight in the Wilderness (1860). The cl
Examples of how the recessive gene for straight hair passes from parents to children Examples of how the recessive gene for straight hair passes from parents to children
Animated Light-independent reactions in CAM plants. Animated Light-independent reactions in CAM plants.
Video: Pores and Ion Channels

For a complete list of videos, visit our video library