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

Author Question: How is proper motion measured? What will be an ideal response? ... (Read 29 times)

123654777

  • Hero Member
  • *****
  • Posts: 585
on: Jul 27, 2018
How is proper motion measured?
 
  What will be an ideal response?

Question 2

Any main sequence star over 25 solar masses will probably retain enough matter in its core after its type II supernova to make a black hole.
 
  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

Tonyam972

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 27, 2018
Answer to Question 1

It is the apparent motion of the star, in seconds of arc, over an interval of exactly one year, after the Earth returns to the same place in its orbit, and all parallax is negated.

Answer to Question 2

TRUE


123654777

  • Member
  • Posts: 585
Reply 2 on: Jul 27, 2018
Wow, this really help

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Seedling growth showing the triple response to ethylene. Seedling growth showing the triple response to ethylene.
Range of Motion of the Wrist and Hand Joints, Radial and Ulnar Deviation of the Wrist Range of Motion of the Wrist and Hand Joints, Radial and Ulnar Deviation of the Wrist
Projectile Motion Projectile Motion
Physics - Motion (Please help me solve these problems, I really need help) Physics - Motion (Please help me solve these problems, I really need help)
Physics 12 - Interpreting Motion Physics 12 - Interpreting Motion
Hypersensitive Response Hypersensitive Response
Video: Chemical Messengers Animation

For a complete list of videos, visit our video library