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

Author Question: Compare the speed of spiral density waves with the orbital speeds of stars in the visible part of ... (Read 35 times)

RODY.ELKHALIL

  • Hero Member
  • *****
  • Posts: 591
on: Jul 27, 2018
Compare the speed of spiral density waves with the orbital speeds of stars in the visible part of the Galactic disk.
 
  What will be an ideal response?

Question 2

The two Voyager spacecraft carry a message from Earth, just in case an alien civilization ever runs across them.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bubulittle310@msn.cn

  • Sr. Member
  • ****
  • Posts: 281
Reply #1 on: Jul 27, 2018
Answer to Question 1

Spiral density waves move slower than the orbital speeds at the same distance from the center of a galaxy.

Answer to Question 2

TRUE


RODY.ELKHALIL

  • Member
  • Posts: 591
Reply 2 on: Jul 27, 2018
Gracias!

adf223

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

The Eudicot Leaf (Part 2) The Eudicot Leaf (Part 2)
A closer look at glycolysis. PART B A closer look at glycolysis. PART B
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
Flexible cooling fan blades change shape as the engine speed changes. Flexible cooling fan blades change shape as the engine speed changes.
How to convert between imperial and metric units (Part 2) How to convert between imperial and metric units (Part 2)
How to calculate simple interest (Part 1) How to calculate simple interest (Part 1)
Video: Hershey Chase Experiments

For a complete list of videos, visit our video library