1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Gas cylinders in space

  1. Oct 4, 2011 #1
    What are 5 ways to determine which of 2 identical cylinders is empty and which is full of gas if they are in space?
     
  2. jcsd
  3. Oct 4, 2011 #2

    DaveC426913

    User Avatar
    Gold Member

    What do you think?

    We can't give you answers. You know this because you agreed to the rules when you signed up.

    So...
     
  4. Oct 4, 2011 #3
    I don't want answers, just to be pointed in the right direction...

    I think I found 2 ways.

    To apply a force to each cylinder to measure the velocity and find the acceleration. Divide force by acceleration.

    Use a small centrifuge and determine rpm and ''radius''. Using a=v2/r, find acceleration. f/a=m

    Any other ideas?
     
  5. Oct 5, 2011 #4
    I also found:
    If there is another object nearby, the time the cylinders take to orbit that object can be used to determine mass. (Kepler's law of planetary motion)

    Use a spring to measure a pulling force on each cylinder and use Newton's second law
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Gas cylinders in space
Loading...