Ответ:
ρт/ρ=0,5
Объяснение:
m*g=0.9*ρ*V/3 + ρ*g*V/5
m=ρт*V
ρт=0.9*ρ/3 + ρ/5
ρт/ρ=7.5/15=0.5
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Ответ:
ρт/ρ=0,5
Объяснение:
m*g=0.9*ρ*V/3 + ρ*g*V/5
m=ρт*V
ρт=0.9*ρ/3 + ρ/5
ρт/ρ=7.5/15=0.5
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