The period-luminosity relation is critical in finding distances ...

[fbq8i]

The period-luminosity relation is critical in finding distances with:
 
  A) RR Lyrae stars.
  B) trigonometric parallaxes.
  C) spectroscopic parallaxes.
  D) Cepheid variables.
  E) pulsars.

Question 2

Which of the following is farthest from the Sun?
 
  A) Pluto
  B) Neptune
  C) an asteroid in the asteroid belt
  D) a comet in the Kuiper belt
  E) a comet in the Oort cloud

[ryrychapman11]

Answer to Question 1

D

Answer to Question 2

E

[fbq8i]

Excellent

[AngeliqueG]

Thanks for the timely response, appreciate it