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

Author Question: Collisions between galaxies: A) are much rarer than collisions between stars. B) can turn ... (Read 50 times)

Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
on: Jul 27, 2018
Collisions between galaxies:
 
  A) are much rarer than collisions between stars.
  B) can turn elliptical galaxies into spirals.
  C) cause large numbers of stars to collide and explode.
  D) cause the gas and dust clouds to collide, leading to rapid star formation.
  E) are the best explanation for gamma-ray burst events.

Question 2

Why are summers hotter than winters? Relate this to the Sun's position in the celestial sphere and the length of the days.
 
  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

ttt030911

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

The Sun is 47 degrees higher in the noon sky for northern hemisphere observers in June than in December, and also gives several extra hours of daylight as well.


Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 27, 2018
TY


ttt030911

  • Sr. Member
  • ****
  • Posts: 315
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

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?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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?

Vaccines prevent between 2.5 and 4 million deaths every year.

A Cluster of Galaxies A Cluster of Galaxies
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Effleurage with loose fist to left side of neck. Turn the head slightly to the right side, exposing ... Effleurage with loose fist to left side of neck. Turn the head slightly to the right side, exposing ...
Turn the hand over and apply broadening effleurage across the palm. The thumbs fan out from the ... Turn the hand over and apply broadening effleurage across the palm. The thumbs fan out from the ...
Turn baby over, placing him or her sideways across your legs if on floor or across pillow. Turn baby over, placing him or her sideways across your legs if on floor or across pillow.
DNA binding faces of l Cro, cI repressor, and CRP, showing the helix–turn–helix motif DNA binding faces of l Cro, cI repressor, and CRP, showing the helix–turn–helix motif
Video: Embryonic development - week 1 and 2

For a complete list of videos, visit our video library