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March 29, 2015

March 29, 2015

Posted by **jessica** on Monday, December 6, 2010 at 1:48pm.

- college physics -
**bobpursley**, Monday, December 6, 2010 at 2:19pmwell, you know the metal will all be underwater. So the question is how much wood is under to support the weight of the metal.

bouyancy of wood= h*density water*area*g

that has to equal the weight of the entire rod.

h*densitywater(area)g-.1*densitymetal*g(area -h*denstiywood*area*g=0

dividing out area, g; divideing by density water.

h-.1spgrmetal-hspgrwood=0

h= (.1 spgrmetal)/(1+sprgwood)= about .5/(1.5)=33cm ?

check my work.

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