« previous next »

Author Question: In astronomical usage, all atoms heavier than helium are referred to as__________. A) metals B) ... (Read 18 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
on: Jul 27, 2018
In astronomical usage, all atoms heavier than helium are referred to as__________.
 
  A) metals
  B) Population I atoms
  C) halos
  D) dark matter

Question 2

__________is a graph of orbital velocity versus radius in the disk of a galaxy.
 
  A) A rotation curve
  B) A normal distribution
  C) The H-R diagram
  D) The light curve


Cnarkel

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

panfilo

  • Hero Member
  • *****
  • Posts: 572
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


Cnarkel

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Sources of ring atoms Sources of ring atoms
The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom. The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom.
How many atoms are in 3.00 moles of NA How many atoms are in 3.00 moles of NA
Atoms and Elements Atoms and Elements
Chemical bonds join atoms into molecules Chemical bonds join atoms into molecules
If the solubility of helium is 0.94 cc per 100 cc of blood at 1.00 atmosphere, w If the solubility of helium is 0.94 cc per 100 cc of blood at 1.00 atmosphere, w
Video: Exocytosis - secretion

For a complete list of videos, visit our video library