Homework Help: PHYSICS NEED HELP FAST

Posted by ricki on Sunday, February 13, 2011 at 9:31pm.

a 1.0kg beaker containgin 2.00kg of oil with a density of 916kg/m3 rests on a scale. a 2.0kg block of iron is suspended from a spring scale and completly submerged in the oil, find the euilibrium readings of both scales.density of iron 7860.

PHYSICS NEED HELP FAST - bobpursley, Sunday, February 13, 2011 at 9:46pm
first the bouyancy supplied to the iron block:

bouyancy=volume*densityoil=2/7860 * 916

work that out.

then the scale above is supporting 2kg-bouyancy.

the scale below is supporting the beaker, the oil, and the bouyancy force.

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