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Author Question: The best way to find the exact distance to the Moon is to: A) measure its exact size in the ... (Read 55 times)

Zoey63294

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on: Jul 27, 2018
The best way to find the exact distance to the Moon is to:
 
  A) measure its exact size in the telescope.
  B) use radar reflection times, about 2.56 second.
  C) bounce lasers off the retroreflectors left on the surface by the Apollo landings.
  D) make parallax measurements from observatories on opposite sides of the Earth.
  E) use stellar occultations for precise timings of the Moon's position.

Question 2

All the Galilean moons are in synchronous rotation, with the same face always pointed toward Jupiter, except for tidally stressed Io.
 
  Indicate whether the statement is true or false


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brbarasa

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

C

Answer to Question 2

TRUE


Zoey63294

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

cdmart10

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Reply 3 on: Yesterday
Excellent

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