Which of the following is NOT a type of force considered in the Navier

1.	Which of the following is NOT a type of force considered in the Navier-Stokes equation?
A.	Gravity force
B.	Pressure force
C.	Surface tension force
D.	Viscous force
Answer» D. Viscous force

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Which of the following is NOT a type of force considered in the Navier-Stokes equation?

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