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While the block hovers in place, is the density of the block (top left) or the density of the liquid (bottom center) greater?

User Vrs
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1 Answer

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Answer:

for the body to float, the density of the body must be less than or equal to the density of the liquid.

Step-by-step explanation:

For a block to float in a liquid, the thrust of the liquid must be greater than or equal to the weight of the block.

Weight is

W = mg

let's use the concept of density

ρ_body = m / V

m = ρ_body V

W = ρ_body V g

The thrust of the body is given by Archimedes' law

B = ρ_liquid g V_liquid

as the body floats the submerged volume of the liquid is less than or equal to the volume of the block

ρ_body V g = ρ_liquid g V_liquid

ρ_body = ρ liquid Vliquido / V_body

As we can see, for the body to float, the density of the body must be less than or equal to the density of the liquid.

User IgalSt
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