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

Author Question: A standard candle is ________. A) a light source of known luminosity B) a 7-cm-long wax candle ... (Read 79 times)

Pineapplelove6

  • Hero Member
  • *****
  • Posts: 560
on: Jul 27, 2018
A standard candle is ________.
 
  A) a light source of known luminosity B) a 7-cm-long wax candle
  C) another name for a main-sequence star D) another name for a barred-spiral galaxy

Question 2

The rotation curve for our Galaxy shows stars beyond the Sun moving more slowly than expected.
 
  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

josephsuarez

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


Pineapplelove6

  • Member
  • Posts: 560
Reply 2 on: Jul 27, 2018
Wow, this really help

TheNamesImani

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

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.

Long-term studies of the Glanville fritillary butterfly, Melitaea cinxia, have provided exceptional Long-term studies of the Glanville fritillary butterfly, Melitaea cinxia, have provided exceptional
Representative Light Curves of Eclipsing Binaries Representative Light Curves of Eclipsing Binaries
Absorbance of Light by Rods and Cones Absorbance of Light by Rods and Cones
Interactions of Light and Matter Interactions of Light and Matter
If you are able to earn 6.2% compounded semi-annually in an account, how long will it take for ... If you are able to earn 6.2% compounded semi-annually in an account, how long will it take for ...
Light micrograph of cells in a strand of Chladophora Light micrograph of cells in a strand of Chladophora
Video: Inflammation

For a complete list of videos, visit our video library