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 32 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
YES! Correct, THANKS for helping me on my review

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Selected Biologic Response Modifiers and Miscellaneous Antineoplastics Selected Biologic Response Modifiers and Miscellaneous Antineoplastics
Guidelines for proper blood pressure cuff size Guidelines for proper blood pressure cuff size
Mensuration: A goniometer is used to measure the range of motion of a joint. Mensuration: A goniometer is used to measure the range of motion of a joint.
The inhibitory response of rods to light. When light bleaches rhodopsin molecules, the rods’ ... The inhibitory response of rods to light. When light bleaches rhodopsin molecules, the rods’ ...
Active range of motion (AROM) tests for the shoulder. A, Apley Scratch Test. B and C, Internal ... Active range of motion (AROM) tests for the shoulder. A, Apley Scratch Test. B and C, Internal ...
Distribution of skin color as measured by a reflectometer at a wavelength of 685 nm. The results are Distribution of skin color as measured by a reflectometer at a wavelength of 685 nm. The results are
Video: Amniocentesis and CVS Animation

For a complete list of videos, visit our video library