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"date": "2022-10-04",
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11
notes/fyz/Mechanika tekutin/Atmosférický tlak.md
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notes/fyz/Mechanika tekutin/Atmosférický tlak.md
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# Atmosférický tlak
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$h=75cm$
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hydrostatický tlak rtuti
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$p_a=p_h$
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$p_a=h\rho g$
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$p_a=0.75*13534*10$
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$p_a=101 505 Pa$
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$p_a\dot=10^5Pa\dot=1000hPa$
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# Hydrostatická tlaková síla
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# Hydrostatická tlaková síla
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$\require{cancel}$
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$F_h=mg=\rho Vg=\rho Shg$
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$F_h=mg=\rho Vg=\rho Shg$
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$F_h=h\rho gS$
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$F_h=h\rho gS$
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@ -8,6 +9,30 @@ hydrostatický tlak: $p_h=\frac{F_h}S=h\rho g$
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Objevuje se [Hydrostatický paradox](Hydrostatický paradox.md).
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Objevuje se [Hydrostatický paradox](Hydrostatický paradox.md).
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## 2 nemísící se kapaliny
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(např. olej a voda)
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$h_1\rho_1g=h_2\rho_2g$
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$\rho_1=?$
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$h_2=27cm$
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$h_1=30cm$
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$\rho_2=1000kg*m^3$
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$p_1=p_2$
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$h_1p_1\cancel{g}=h_2p_2\cancel{g}$
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$h_1\rho_1=h_2\rho_2$
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$\rho_1=\frac{h_2p_2}{h_1}$
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$\rho_1=\frac{27*\cancel{10^{-2}}*10^3}{30*\cancel{10^{-2}}}$
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$\rho_1=900kg*m^{-3}$
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---
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---
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## Příklady
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## Příklady
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@ -27,4 +52,3 @@ $F_h=28N$
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(Bruno neumí fotit)
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(Bruno neumí fotit)
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----
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----
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# Mechanika tekutin
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# Mechanika tekutin
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%% Zoottelkeeper: Beginning of the autogenerated index file list %%
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%% Zoottelkeeper: Beginning of the autogenerated index file list %%
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- [[fyz/Mechanika tekutin/Atmosférický tlak|Atmosférický tlak]]
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- [[fyz/Mechanika tekutin/Hydraulická zařízení|Hydraulická zařízení]]
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- [[fyz/Mechanika tekutin/Hydraulická zařízení|Hydraulická zařízení]]
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- [[fyz/Mechanika tekutin/Hydrostatická tlaková síla|Hydrostatická tlaková síla]]
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- [[fyz/Mechanika tekutin/Hydrostatická tlaková síla|Hydrostatická tlaková síla]]
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- [[fyz/Mechanika tekutin/Hydrostatický paradox|Hydrostatický paradox]]
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- [[fyz/Mechanika tekutin/Hydrostatický paradox|Hydrostatický paradox]]
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- [[fyz/Mechanika tekutin/Tekutiny|Tekutiny]]
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- [[fyz/Mechanika tekutin/Tekutiny|Tekutiny]]
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- [[fyz/Mechanika tekutin/Torricelliho pokus|Torricelliho pokus]]
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%% Zoottelkeeper: End of the autogenerated index file list %%
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%% Zoottelkeeper: End of the autogenerated index file list %%
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3
notes/fyz/Mechanika tekutin/Torricelliho pokus.md
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3
notes/fyz/Mechanika tekutin/Torricelliho pokus.md
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# Torricelliho pokus
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[Torricelliho pokus – Wikipedie](https://cs.wikipedia.org/wiki/Torricelliho_pokus)
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