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 34 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
Gracias!

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

A theoretical photosynthetic response curve. A theoretical photosynthetic response curve.
Proper Motion of Barnard’s Star Proper Motion of Barnard’s Star
Drug tolerance: A shift in the dose-response curve to the right as a result of exposure to the drug. Drug tolerance: A shift in the dose-response curve to the right as a result of exposure to the drug.
Babinski response Babinski response
Orbital Motion of Earth and Other Planets Orbital Motion of Earth and Other Planets
Physics - Motion (Please help me solve these problems, I really need help) Physics - Motion (Please help me solve these problems, I really need help)
Video: Types of Shock (Part 2 of 2)

For a complete list of videos, visit our video library