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Introductory Physics Homework Help
How to Calculate the Density of a Doughnut Submerged in Oil?
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[QUOTE="MozAngeles, post: 2994422, member: 272643"] [h2]Homework Statement [/h2] A popular brand of doughnut is made in an assembly-line fashion. First, the white, uncooked doughnut is dropped into hot vegetable oil ( ρ= 949 kg/m[SUP]3[/SUP]) where it browns on one side as it cooks. It is then flipped over and browned on the other side. The final product still has a white stripe around the middle where the dough always stays out of the oil, as indicated in the figure .[ATTACH=full]137912[/ATTACH] Assuming the doughnut has a cylindrical shape of height [I]H[/I] and diameter [I]D[/I], and that the height of the white stripe is 0.25[I]H[/I], find the density of the doughnut. [h2]Homework Equations[/h2] F[SUB]buoyant[/SUB]=[tex]\rho[/tex]Vg F[SUB]buoyant[/SUB]=weight of doughnut [tex]\rho[/tex]=M/V V[SUB]submerged[/SUB]=V[SUB]doughnut[/SUB]([tex]\rho[/tex][SUB]doughtnut[/SUB]/[tex]\rho[/tex][SUB]oil[/SUB]) [h2]The Attempt at a Solution[/h2] I have not idea where to start.. the only conclusion I have come to is that the doughnut it floating so it's density has to be less than oil. I know i must use most of these equations but I'm confused on which ones to use, considering i don't have numbers to plug in. The whole white line in the center is throwing me off... [/QUOTE]
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How to Calculate the Density of a Doughnut Submerged in Oil?
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