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

Author Question: The Andromeda spiral galaxy is almost edge-on to us. Astronomers have detected the orbital motion of ... (Read 38 times)

james0929

  • Hero Member
  • *****
  • Posts: 586
on: Jul 27, 2018
The Andromeda spiral galaxy is almost edge-on to us. Astronomers have detected the orbital motion of this and other such galaxies' disk material by
 
  a. using Hubble's law.
  b. measuring Doppler shifts of different parts of the disk.
  c. the steady state theory.
  d. measuring Doppler shifts of different parts of the disk.

Question 2

Stars that have ejected a planetary nebula eventually become
 
  a. protostars.
  b. brown dwarfs.
  c. white dwarfs.
  d. red giants.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

SAUXC

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

c


james0929

  • Member
  • Posts: 586
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

flexer1n1

  • Member
  • Posts: 373
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Range of Motion of the Hip Joint, Hyperextension Range of Motion of the Hip Joint, Hyperextension
How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
Range of motion at the shoulder and hip joints. Range of motion at the shoulder and hip joints.
(A) Thumb slides to forehead in 2–3 rows, and along the eyebrow to the outer edge. (B) Press into ... (A) Thumb slides to forehead in 2–3 rows, and along the eyebrow to the outer edge. (B) Press into ...
Barred Spiral Galaxy Barred Spiral Galaxy
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: Physiology of Asthma

For a complete list of videos, visit our video library