A scale reads 328 N when a piece of brass is hanging from it. What does it read (in N) when it is lowered so that the brass is submerged in water?
F2=F1ρ2−ρ1ρ2=290 N.F_2=F_1\frac{\rho_2-\rho_1}{\rho_2}=290~N.F2=F1ρ2ρ2−ρ1=290 N.
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