Pick the correct statement about mechanical pressure on fluid element.
1
It is a first order tensor and depends upon the orientation of the surface upon which it acts.
2
It is a zero order tensor and does not depend upon the orientation of the surface upon which it acts.
3
It is a zero order tensor and depends upon the orientation of the surface upon which it acts.
4
It is a first order tensor and does not depend upon the orientation of the surface upon which it acts.