Classical Mechanics

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Fluid Pressure: Drinking on the Moon


The Moon has gravity about $1/6^{th}$ as strong as Earth's, but no atmosphere. Suppose an astronaut on the Moon had a special fixture in his helmet that would allow him to insert a straw through his helmet face-plate in order to safely drink a soda (the cup of soda remaining outside).

Assuming the liquid in the soda did not boil away or freeze, would the astronaut be able to drink his soda?


Yes, it would be just like drinking through a straw on Earth


Yes, it would actually be easier than drinking through a straw on Earth


Yes, but it would be more difficult than drinking through a straw on Earth


No, because the lack of air pressure would make it impossible


No, because the lower gravity would make it impossible