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Sagot :
Answer:
In both cases the height is greater than 10.3 m
Explanation:
Pressure is defined by the relationship
P = F / A
in this case the force is the weight of the two gases
F = W = m g
If we use the definition of density
ρ = m / V
V = A h
m = ρ A h
we substitute
P = ρ g h
h = [tex]\frac{P}{\rho g}[/tex]
For this case the density of the gases is
ρ' = 0.9 [tex]\rho_{water}[/tex]
h =[tex]\frac{P}{0.9 \ \rho_{water} g}[/tex]
we calculate
ρ’= 0.9 \rho_{water}
h = 1 105 / (0.9 1000 9.8)
h = 11.3 m
ρ’= 0.8 \rho_{water}
h = 1 105 / (0.8 1000 9.8
h = 12.8 m
In both cases the height is greater than 10.3 m
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