Hi,all I am really very serious about what actually is the nature of pressure as a physical quantity.Books says it has no direction i.e. it is scalar some says it is not.but thinking ourselves it seems pressure has direction in the direction of applied force.Now I want to understand the mathematics behind this thing.I was taught on net some where that all physical quantites can be called tensors, now if the quantity has no direction associated with it then its rank is said to be zero and is given special name as scalar and if the quantity has a direction then it is ranked 1 and given the name vector and some quantities like angular momentum have rank 2, similarly we have quantities of rank 2, 3, and 4 also.I want to know the tensor rank of pressure.thanks a ton(adsbygoogle = window.adsbygoogle || []).push({});

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# Is pressure a rank 2 tensor?

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