SI Units for Pressure: N m^2 or N m^-2?

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Are the SI units for pressure N m^2 or is it N m^-2?
 
on Phys.org
Start with the pressure definition and it should be obvious.
 
Force applied per unit area perpendicular to a surface , ... so it's N m^-2?
 
Last edited:
Yes.
 

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