Difference between N/m^2 and N/m^-2

Thread starter elecone
Start date Jul 6, 2021
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N/m^2 and N/m^-2 are equivalent units representing pressure, both defined as "Newtons per square metre." The confusion arises with N/m^-2, which is not correct as it implies a different measurement, specifically Nm^2. The distinction is important for clarity in physics and engineering contexts. Understanding these units ensures accurate communication of pressure measurements. Both N/m^2 and N/m^-2 should be used interchangeably for pressure, while avoiding N/m^-2 to prevent misunderstanding.

Jul 6, 2021

elecone

Homework Statement: My homework questions all state pressure as N/m^-2. what's the difference between N/m^2 and N/m^-2? Thanks

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Jul 6, 2021

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elecone said:

Homework Statement:: My homework questions all state pressure as N/m^-2. what's the difference between N/m^2 and N/m^-2? Thanks

Pressure could be in units of ##N/m^2## or ##Nm^{-2}##. They're the same thing: "Newtons per square metre".
But not ##N/m^{-2}##, which would be the same as ##Nm^2##.

Jul 6, 2021

elecone

that's perfect, thanks

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