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need help desperatly in GPS

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shannondeann | 23:01 Sat 29th Oct 2005 | Science
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Using the laws of physics and the correct scientific terms describe how a submarine is able to submerge and surface again?
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Avatar Image KebabMeister
Try googling 'how does a submarine work'. Hope this helps with your homework.
23:34 Sat 29th Oct 2005
Avatar Image mibn2cweus
hint: buoyancy?
02:06 Sun 30th Oct 2005
Avatar Image brachiopod

...and bouyancy is a function of average density.


By taking in or evacuating ballast water, the sub will make its average density less than or greater than the water around it, making it rise or fall, respectively, within the water column.

02:47 Sun 30th Oct 2005
Avatar Image burnhal
we just used to put the planes hard to rise and blow 1,2,3 and 6,7,8 main ballast
22:52 Sun 30th Oct 2005

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