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Author Question: Ekapluto is an unknown planet that has two moons in circular orbits. The table summarizes the ... (Read 35 times)

sammy

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on: Jul 29, 2018
Ekapluto is an unknown planet that has two moons in circular orbits. The table summarizes the hypothetical data about the moons.
 
  Mass Radius Orbital Radius Orbital period
  Moon A 4.0  1020 kg 2.0  108 m 4.0  106 s
  Moon B 1.5  1020 kg 2.0  105 m 3.0  108 m
 
  The orbital period of Moon B is closest to
  A) 5.6  106 s.
  B) 6.0  106 s.
  C) 6.4  106 s.
  D) 6.9  106 s.
  E) 7.3  106 s.

Question 2

Two moons orbit a planet in nearly circular orbits. Moon A has orbital radius r, and moon B has orbital radius 4r. Moon A takes 20 days to complete one orbit. How long does it take moon B to complete an orbit?
 
  A) 20 d
  B) 40 d
  C) 80 d
  D) 160 d
  E) 320 d


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kescobar@64

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

E

Answer to Question 2

D


sammy

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Reply 2 on: Jul 29, 2018
Gracias!

lindahyatt42

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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