After a long space trip where you are in stasis, your autonomous ship lands you on a planet you don’t recognize. Having the equipment on board the ship to make a pendulum, you put one together with a bob of mass 25 g and a length of 50 cm. You find the period to be 1.4 s. Are you on earth? If not, is the planet you are on more or less massive than earth?

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter39: Relativity
Section: Chapter Questions
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After a long space trip where you are in stasis, your autonomous ship lands you on a planet you don’t recognize. Having the equipment on board the ship to make a pendulum, you put one together with a bob of mass 25 g and a length of 50 cm. You find the period to be 1.4 s.

  1. Are you on earth?

  2. If not, is the planet you are on more or less massive than earth?

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