The normal stress is the same in all directions at a point in a fluid,

1.	The normal stress is the same in all directions at a point in a fluid, only when the fluid__________________?
A.	Is at rest & has zero viscosity
B.	Is frictionless
C.	Fluid layer has no motion relative to an adjacent layer of fluid
D.	is incompressible & frictionless
Answer» E.

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The normal stress is the same in all directions at a point in a fluid, only when the fluid__________________?

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