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Tlak

Tlak. [Pa = N m -2 ]. 1bar = 10 5 Pa. Hidrostatski tlak. p =  gh. Hidrostatski paradoks. F h. F. F v. F v. F. F h. A. A. A. Zadatak: Neka sisaljka podiže vodu na visinu 45 m. Kolikom silom djeluje sisaljka na otvor ventila, ako je njegova površina 8 cm 2 ?. Rješenje:.

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Tlak

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  1. Tlak [Pa = N m-2] 1bar = 105 Pa Hidrostatski tlak p = gh

  2. Hidrostatski paradoks Fh F Fv Fv F Fh A A A

  3. Zadatak: Neka sisaljka podiže vodu na visinu 45 m. Kolikom silom djeluje sisaljka na otvor ventila, ako je njegova površina 8 cm2? Rješenje: h = 45 m A = 8 cm2 = 0,0008 m2 F = ? , p = gh F = ghA = 1000 kg m-39,81 m s-245 m 0,0008 m2 F = 353 N

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