Unformatted text preview: Denote the vclume at the ﬂeeting cube by v'and its requested density by pa. The weight Wet the cube is
1«where g is the acceleratten due to gravity. Dehbte the given tractinh cf the cuhe'svdlume by tend the given densityr of the all by pg. The submerged velume is then N. The beuyant force 5 that sets an the cube equals the Illllreight of the oil displaced by the cube,
acccrdirlg tn N‘chtmedes. This is 3= Minus The cube is in vertical equilibrium, so its weight is balanced by the bouvant farce. W= B
E: uate the expressions tcr W and El, cancel v'and g, and obtain the requested density H: at the cube‘s material
in tenns at given quantities. PL =1" FL tiller £13 numerical answer, ccnvert the given value for ffrcm a percentage la a decimal tracticn and substitute
t E eta. p: - 1}.ch [9|]? kg I m’] - 15.00 x in’ kg at m” ...
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