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

Author Question: According to their rotation curves, most spiral galaxies: A) rotate as a solid body. B) rotate ... (Read 74 times)

Melani1276

  • Hero Member
  • *****
  • Posts: 516
on: Jul 27, 2018
According to their rotation curves, most spiral galaxies:
 
  A) rotate as a solid body.
  B) rotate counterclockwise.
  C) have decreasing rotational speeds with increasing distance.
  D) contain dark matter.
  E) contain dark energy.

Question 2

Most of the energy of the supernova is carried outward via a flood of:
 
  A) gamma rays.
  B) helium nuclei.
  C) protons.
  D) neutrinos.
  E) positrons.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

brittanywood

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


Melani1276

  • Member
  • Posts: 516
Reply 2 on: Jul 27, 2018
Excellent

samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

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

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Countercurrent heat exchange in dolphin flippers promotes conservation of body heat. Countercurrent heat exchange in dolphin flippers promotes conservation of body heat.
Abduction and Adduction Abduction–Moving a body part away from the middle. Adduction–Moving a body p Abduction and Adduction Abduction–Moving a body part away from the middle. Adduction–Moving a body p
Galaxies Forming by Combining Smaller Units Galaxies Forming by Combining Smaller Units
Describe how fat is digested, absorbed, and transported in the body Describe how fat is digested, absorbed, and transported in the body
Body sites where the peripheral pulse is most easily palpated Body sites where the peripheral pulse is most easily palpated
Enlargement of spiral organ (organ of Corti) Enlargement of spiral organ (organ of Corti)
Video: Glomerubular filtrate rate -pressures that affect GFR and net filtration pressure

For a complete list of videos, visit our video library