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Author Question: A standard candle is ________. A) a light source of known luminosity B) a 7-cm-long wax candle ... (Read 170 times)

Pineapplelove6

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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


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josephsuarez

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


Pineapplelove6

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Reply 2 on: Jul 27, 2018
Gracias!

coreycathey

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Reply 3 on: Yesterday
Excellent

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