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

Author Question: The period-luminosity relation is critical in finding distances with A) Cepheid variables. B) ... (Read 85 times)

bobbie

  • Hero Member
  • *****
  • Posts: 592
on: Jul 27, 2018
The period-luminosity relation is critical in finding distances with
 
  A) Cepheid variables.
  B) spectroscopic parallaxes.
  C) pulsars.
  D) trigonometric parallaxes.
  E) RR Lyrae stars.

Question 2

Cosmic inflation continues today in the cosmological redshifts and dark energy.
 
  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

blakcmamba

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


bobbie

  • Member
  • Posts: 592
Reply 2 on: Jul 27, 2018
Excellent

dawsa925

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

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?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Megazostrodon, the first known mammal of the Triassic period. Megazostrodon, the first known mammal of the Triassic period.
Critical thinking and the process of planning care Critical thinking and the process of planning care
Critical Pediatric Symptoms Indicating Need for Assessment and Possible Intervention Critical Pediatric Symptoms Indicating Need for Assessment and Possible Intervention
Embryonic Period Embryonic Period
Finding the equation of a line Finding the equation of a line
Finding the graph of a Parabola using certain values Finding the graph of a Parabola using certain values
Video: Gastrin (gastric emptying) & Secretin (buffering gastric acid)

For a complete list of videos, visit our video library