P15_075 - F = ( V b + V ) w g, where V is the interior...

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75. The beaker is indicated by the subscript b . The volume of the glass of which the beaker walls and base are made is V b = m b b . We consider the case where the beaker is slightly more than half full (which, for calculation purposes, will be simply set equal to half-volume) and thus remains on the bottom of the sink – as the water around it reaches its rim. At this point, the force of buoyancy exerted on it is given by
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Unformatted text preview: F = ( V b + V ) w g, where V is the interior volume of the beaker. Thus F = ( V b + V ) w g = w g ( V/ 2)+ m b , which we solve for b : b = 2 m b w 2 m b w V = 2(390 g)(1 . 00 g / cm 3 ) 2(390 g) 1 . 00 g / cm 3 (500 cm 3 ) = 2 . 79 g / cm 3 ....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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