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

Author Question: Very rapid time variations help establish the tiny size of many X-ray sources, showing they must be ... (Read 39 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
on: Jul 27, 2018
Very rapid time variations help establish the tiny size of many X-ray sources, showing they must be collapsed objects of some kind.
 
  Indicate whether the statement is true or false

Question 2

What can cause a galactic fountain?
 
  A) winds and jets from newly-formed protostars
  B) a supernova occurring in the halo
  C) multiple supernovae occurring together
  D) the combined effect of spiral density waves
  E) molecular clouds falling towards the galactic center


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aham8f

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

TRUE

Answer to Question 2

C


panfilo

  • Member
  • Posts: 572
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

The Meselson and Stahl experiment showing that DNA replication is semiconservative The Meselson and Stahl experiment showing that DNA replication is semiconservative
Electronic service information is available from aftermarket sources, such as All-Data and ... Electronic service information is available from aftermarket sources, such as All-Data and ...
A 2-fold serial dilution showing the result of moving 0.2 ml of green food coloring successively ... A 2-fold serial dilution showing the result of moving 0.2 ml of green food coloring successively ...
Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation. Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation.
The time spent in each interval of one complete cell cycle of a human cell in culture The time spent in each interval of one complete cell cycle of a human cell in culture
Relative size ranges and fluorescent dye labeling colors of 16 STR Relative size ranges and fluorescent dye labeling colors of 16 STR
Video: Effect of the environment on coat color in the Himalayan rabbit Animation

For a complete list of videos, visit our video library