What is the principle of conservation of mass in fluid mechanics? a) It is the principle that states that the velocity of a fluid is constant throu...
What is the principle of conservation of mass in fluid mechanics?
a) It is the principle that states that the velocity of a fluid is constant throughout a tube.
b) It is the principle that states that the properties and characteristic quantities of a non-permanent flow are constant over time.
c) It is the principle that states that transient flows have an initial phase, a permanent flow, and that due to an acceleration of the velocity, they assume a new permanent situation.
d) It is the principle that states that periodic flows follow a continuous temporal variation over time.
e) It is the principle that states that flows occur with a random variation of velocity over time.
a) It is the principle that states that the velocity of a fluid is constant throughout a tube.
b) It is the principle that states that the properties and characteristic quantities of a non-permanent flow are constant over time.
c) It is the principle that states that transient flows have an initial phase, a permanent flow, and that due to an acceleration of the velocity, they assume a new permanent situation.
d) It is the principle that states that periodic flows follow a continuous temporal variation over time.
e) It is the principle that states that flows occur with a random variation of velocity over time.
a) It is the principle that states that the velocity of a fluid is constant throughout a tube.
b) It is the principle that states that the properties and characteristic quantities of a non-permanent flow are constant over time.
c) It is the principle that states that transient flows have an initial phase, a permanent flow, and that due to an acceleration of the velocity, they assume a new permanent situation.
d) It is the principle that states that periodic flows follow a continuous temporal variation over time.
e) It is the principle that states that flows occur with a random variation of velocity over time.
a) It is the principle that states that the velocity of a fluid is constant throughout a tube.
b) It is the principle that states that the properties and characteristic quantities of a non-permanent flow are constant over time.
c) It is the principle that states that transient flows have an initial phase, a permanent flow, and that due to an acceleration of the velocity, they assume a new permanent situation.
d) It is the principle that states that periodic flows follow a continuous temporal variation over time.
e) It is the principle that states that flows occur with a random variation of velocity over time.
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Ed 
O princípio da conservação da massa na mecânica dos fluidos afirma que a massa total de um sistema fechado de fluidos permanece constante, independentemente das mudanças que ocorrem dentro do sistema. Isso significa que a massa que entra em um sistema deve ser igual à massa que sai do sistema, e que a massa não pode ser criada ou destruída. A alternativa correta é a letra B) É o princípio que afirma que as propriedades e quantidades características de um fluxo não permanente são constantes ao longo do tempo.
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