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Tryk og Temperatur

QuestionAnswer
Hvad er SI-enheden for tryk? SI-enheden for tryk er N/m^2
Vokser eller falder trykket, jo længere nede man er i vandet? Trykket vokser, jo længere nede man er i vand
Hvilken formel skal man bruge for at udregne opdriften på en delvist nedsænket genstand? Fopdrift = mvæske ∙ g
Hvordan opstår lufttryk? Lufttryk opstår ved, at luftmolekylerne ved sammenstød med en flade påvirker den med en kraft
hvor mange kPa er 1 atm? 1 atm = 101,3 kPa
Hvad er SI-enheden for temperatur? SI-enheden for temperatur er K (kelvin)
Hvordan kan sammenhængen mellem T og t skrives på? T = t∙(K/˚C)+ 273,15K
Hvordan finder man trykket P i dybden h i en væske? P = P0+h∙ρ∙g
hvad er 1 bar lige med= 1 bar = 10^5 Pa
hvor mange procent af et isbjerg er ca. over vandoverfladen? ca. 10 %
Created by: Høyer
 

 



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