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Author Question: The distance between Earth and the Moon is 3.84 108 m. A pulse of laser light aimed at the Moon that ... (Read 110 times)

haleyc112

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on: Jul 29, 2018
The distance between Earth and the Moon is 3.84 108 m. A pulse of laser light aimed at the Moon that bounces back to Earth undergoes a round-trip time of about
 
  A) zero seconds.
  B) less than 1 second.
  C) two and a half seconds.
  D) three seconds.

Question 2

Compared with the speed of light in a vacuum, the speed of light in the empty space between molecules in glass is
 
  A) more.
  B) the same.
  C) less.


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braelync

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


haleyc112

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Reply 2 on: Jul 29, 2018
Wow, this really help

Sarahjh

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Reply 3 on: Yesterday
:D TYSM

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