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 107 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
Wow, this really help

patma1981

  • Member
  • Posts: 292
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

The Critical Weather Maker: Atmospheric Stability The Critical Weather Maker: Atmospheric Stability
Embryonic Period Embryonic Period
Embryonic Period Embryonic Period
Finding the angle from a ratio Finding the angle from a ratio
Finding the derivative using the power rule - Solutions Finding the derivative using the power rule - Solutions
Trouble finding the overlapped region Trouble finding the overlapped region
Video: Non-polar compounds - insolubility

For a complete list of videos, visit our video library