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Author Question: Someone on the near side of the Moon would observe Earth rise once every a. 24 hours. b. 24 hours ... (Read 73 times)

Yolanda

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on: Jul 28, 2018
Someone on the near side of the Moon would observe Earth rise once every
 a. 24 hours.
  b. 24 hours and 50 minutes.
  c. 29.5 Earth days.
  d. None of these, the observer would never see Earth rise or set.

Question 2

Unlike spherical mirrors, spherical lenses do not have a focal length equal to ______________.
 Fill in the blank(s) with correct word


katieost

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Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

R/2


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