16 - C - 600 Pa
m=300 g = 0,3 kg
S=50 cm² = 0,005 m²
p = ?
[tex]p=\frac{F}{S}=\frac{gm}{S}=\frac{10 \ [\frac{m}{s^2}]*0,3 \ [kg]]}{0,005 \ [m^2]}=\frac{3}{0,005} \ [\frac{m \ kg}{s^2 \ m^2}]=600 \ \frac{kg}{s^2 \ m}=600 \ Pa[/tex]
18 - A - 1,3 razy
ρ₁=1300 kg/m³
ρ₂=1000 kg/m³
V₁=V₂
[tex]\frac{m_1}{m_2}=?[/tex]
[tex]\rho=\frac{m}{V} \ \ \rightarrow \ \ m=\rho *V[/tex]
[tex]\frac{m_1}{m_2}=\frac{\rho_1 V_1}{\rho_2 V_2}=\frac{\rho_1 V}{\rho_2 V}=\frac{1300}{1000} \ \ \rightarrow \ \ m_1=1,3 \ m_2[/tex]
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Verified answer
16 - C - 600 Pa
m=300 g = 0,3 kg
S=50 cm² = 0,005 m²
p = ?
[tex]p=\frac{F}{S}=\frac{gm}{S}=\frac{10 \ [\frac{m}{s^2}]*0,3 \ [kg]]}{0,005 \ [m^2]}=\frac{3}{0,005} \ [\frac{m \ kg}{s^2 \ m^2}]=600 \ \frac{kg}{s^2 \ m}=600 \ Pa[/tex]
18 - A - 1,3 razy
ρ₁=1300 kg/m³
ρ₂=1000 kg/m³
V₁=V₂
[tex]\frac{m_1}{m_2}=?[/tex]
[tex]\rho=\frac{m}{V} \ \ \rightarrow \ \ m=\rho *V[/tex]
[tex]\frac{m_1}{m_2}=\frac{\rho_1 V_1}{\rho_2 V_2}=\frac{\rho_1 V}{\rho_2 V}=\frac{1300}{1000} \ \ \rightarrow \ \ m_1=1,3 \ m_2[/tex]