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What Is Buoyancy Force?

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adityasingh | 21:36 Fri 20th Jan 2017 | Science
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What is buoyancy force?
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Avatar Image Buenchico
21:43 Fri 20th Jan 2017
Avatar Image Peter Pedant
// Upthrust is the forcethatis what that pushes an object up. and makes it seem to lose weight in a fluid. (Remember, a fluid means a liquid or a gas). The upthrust, or buoyancy, keeps ships afloat. The upthrust, or buoyancy, keeps swimmers on top of the water.//

and I think that is what you have been asked to calculate

so you find out the volume of water displaced - and its weight - and that is the upthrust ( vol and weight are connected by density )

re read your chapter on hydrostatics
21:45 Fri 20th Jan 2017
Avatar Image Karolina82
Why does an air bubble rise in water when gravity should pull it downwards ? Think of the denser water around the air bubble descending as the less dense air rises.
21:57 Sun 22nd Jan 2017

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