In equilibrium, the pressure of a fluid parallel to the surface of the container

Question

In equilibrium, the pressure of a fluid parallel to the surface of the container is: A. positive B. unknown C. zero D. negative Which of the following does not determine the buoyancy force of an object in a fluid? A. the mass of the object B. the volume of the displaced fluid C. the density of the fluid D. the mass of the fluid Which of the following does not contribute to mass flow rate of a fluid? A. The density of the fluid B. The cross-sectional area of the pipe C. The length of the pipe D. The velocity of the fluid

Explanation / Answer

1)

correct option is C) zero

pressure is defined as perpendicular force component per unit area

2)

correct option is A) the mass of the object

buoyancy force doesnot depend on the mass of the object

3)

correct option is C) length of the pipe

mass flow rate=rho*V*A

rho--> density of the fluid

V---> velocity of the fluid

A---> Area of cross section

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