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 86 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
YES! Correct, THANKS for helping me on my review

laurnthompson

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

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.

Mars from Hubble Space Telescope October 28, 2005 with dust storm visible. Mars from Hubble Space Telescope October 28, 2005 with dust storm visible.
The blood cells are shown in (a)–(f) and the tissue white blood cells are shown in (g), (h), and ... The blood cells are shown in (a)–(f) and the tissue white blood cells are shown in (g), (h), and ...
Normal and abnormal corneal light reflection test Normal and abnormal corneal light reflection test
Evaluation of light touch Evaluation of light touch
Great White Shark (Carcharodon carcharias). Great White Shark (Carcharodon carcharias).
Video: B cells and antibodies

For a complete list of videos, visit our video library