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

Author Question: The units of proper motion are km/s because proper motion is the motion of stars across the sky. ... (Read 148 times)

viki

  • Hero Member
  • *****
  • Posts: 525
on: Jul 27, 2018
The units of proper motion are km/s because proper motion is the motion of stars across the sky.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

A star has crossed the birth line and thus that star is now called a ________________.
 
  a. main-sequence star b. protostar
  c. YSO d. ZAMS


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meryzewe

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 27, 2018
Answer to Question 1

False
RATIONALE: Units are not linear but angular so, for example, units of proper motion could be arc seconds/yr.

Answer to Question 2

c


viki

  • Hero Member
  • *****
  • Posts: 525
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


meryzewe

  • Sr. Member
  • ****
  • Posts: 346
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Apparent motion of Alpha Centauri relative to Beta Centauri Apparent motion of Alpha Centauri relative to Beta Centauri
Stars and the Interstellar Medium Stars and the Interstellar Medium
Notice how clean the engine appears. This is a testament of proper maintenance and regular ... Notice how clean the engine appears. This is a testament of proper maintenance and regular ...
Be sure that the clips are properly installed. Start the engine and check for proper operation. Be sure that the clips are properly installed. Start the engine and check for proper operation.
Transport of acetyl units and reducing equivalents used in fatty acid synthesis Transport of acetyl units and reducing equivalents used in fatty acid synthesis
Energy and Energy Units Energy and Energy Units
Video: Structure of Amino Acid, Peptide Bonds & Polypeptides

For a complete list of videos, visit our video library