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Buoyant liquid

  1. Oct 15, 2006 #1
    buoyant forces

    I was having trouble with this problem. please let me know how to approach this. thanks.

    An empty rubber balloon has a mass of 0.0135 kg. The balloon is filled with helium at a density of 0.181 kg/m3. At this density the balloon is spherical with a radius of 0.400 m. If the filled balloon is fastened to a vertical line, what is the tension in the line?
    Last edited: Oct 15, 2006
  2. jcsd
  3. Oct 15, 2006 #2
    You should show some of ur workings b4 we can help. Alright, just a little clue to get u started. Upthrust- weight= tension of string.
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