Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Physics metal and air density problem

  1. Jun 27, 2005 #1
    a metal of density x weighs y in air,when immersed in a liquid of density z,what is it's apparent weight.please i need explanations about this
  2. jcsd
  3. Jun 27, 2005 #2
    The weight, other than the mass, of an object is the force gravity excerts on it. So although your mass remains the same, your weight would be different on e.g. the moon. You could also include the buoyancy force in the weight so when an object is immersed in a fluid e.g. it's weight decreases, as you might notice when you go swimming :smile:

    So you have to find the net force on an object immersed in a liquid. Do you know the expression for the buoyancy force, Archimedes law?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook