Question

a) Which of the following measurements do you need in order to calculate the pressure at some point in a hydrostatic liquid? Assume the fluid is near the surface of earth. Select all that you need.

A.The shortest distance from the point to the surface of the liquid

B.Pressure at the surface

C.Mass density of the liquid

D.Horizontal cross-section of the liquid at the depth of the point

E.Volume of the liquid

F..Acceleration due to gravity

G.Depth of the point below the surface of the liquid

b) The magnitude of a buoyant force on an object is determined by which of the following?
Select all correct answers.

A.Volume of the fluid that is displaced by the object

B.Depth of the object (when it is totally submerged)

C.Total volume of the object

D.Mass density of the fluid

E.Acceleration due to gravity

F.Mass density of the object

c)An ideal fluid has which of the following properties?
Select all correct answers.

A.Is low in temperature

B.Particles of fluid are frictionless with each other

C.Is liquid

D.Has steady (laminar) flow

E.Is incompressible

F.Has chaotic (turbulent) flow

Answer 1

Hydrostatics,Buoyancy and fluid mechanics