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

Author Question: The rotation curve of a galaxy can be used to determine a. the relative number of hot young stars ... (Read 50 times)

luvbio

  • Hero Member
  • *****
  • Posts: 623
on: Jul 27, 2018
The rotation curve of a galaxy can be used to determine
 
  a. the relative number of hot young stars in the galaxy.
  b. the relative amount of gas and dust in the galaxy.
  c. the radius of the galaxy.
  d. the luminosity of the galaxy.
  e. the mass of the galaxy.

Question 2

More massive stars have more weight to support, so these stars are more luminous.
 
  a. True
  b. False
  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

apple

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 27, 2018
Answer to Question 1

e

Answer to Question 2

True


luvbio

  • Member
  • Posts: 623
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

Dinolord

  • Member
  • Posts: 313
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Inhalation medication administration. Photograph of a young girl using a metered-dose inhaler. Inhalation medication administration. Photograph of a young girl using a metered-dose inhaler.
Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
Synchronous Rotation of the Moon Synchronous Rotation of the Moon
Eleanor Roosevelt dispenses soup to the needy. As a wealthy young socialite, she exhibited little .. Eleanor Roosevelt dispenses soup to the needy. As a wealthy young socialite, she exhibited little ..
Number Facts Number Facts
Video: Introduction to Tuberculosis

For a complete list of videos, visit our video library