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

Author Question: The high _______________ of quasars reveals to astronomers that they must be very distant. Fill ... (Read 70 times)

elizabeth18

  • Hero Member
  • *****
  • Posts: 559
on: Jul 27, 2018
The high _______________ of quasars reveals to astronomers that they must be very distant.
 
  Fill in the blank(s) with correct word

Question 2

We know that the central object in a planetary nebula has a surface temperature of at least ____ because the nebula contains large amounts of ionized hydrogen.
 
  a. 50 K
  b. 100 K
  c. 500 K
  d. 5,000 K
  e. 25,000 K


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cegalasso

  • Sr. Member
  • ****
  • Posts: 295
Reply #1 on: Jul 27, 2018
Answer to Question 1

redshift

Answer to Question 2

e


elizabeth18

  • Member
  • Posts: 559
Reply 2 on: Jul 27, 2018
Gracias!

softEldritch

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

California high desert cottontail eating a carrot California high desert cottontail eating a carrot
Couples whose marriages have become distant or hostile can make changes in their patterns of ... Couples whose marriages have become distant or hostile can make changes in their patterns of ...
Always use the viscosity of oil as specified on the oil fill cap. Always use the viscosity of oil as specified on the oil fill cap.
In situ hybridization. This color-coded frontal section through a rat brain reveals high ... In situ hybridization. This color-coded frontal section through a rat brain reveals high ...
Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ... Exchange of gases between lungs and blood. High concentration of CO2 in blood capillary entering the ...
A(n) _____ is a spur-of-the-moment question. Fill in the blank(s) with correct word A(n) _____ is a spur-of-the-moment question. Fill in the blank(s) with correct word
Video: Interview with an Anorexic Woman (Part 2 of 2)

For a complete list of videos, visit our video library