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# Help with a pascals conversion please!

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1. Hi!
I would like to know how you do this
I know that
Pressure (Pa) = force/area
Therefore, it will be 4.8N/m^2
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2. One step at a time.

4.8 N is 4800 mN
1 m^2 is 10,000 cm^2 (check you understand why)

so 4.8 N/m^2 is 4800 mN / 10,000 cm^2 = 0.48 mN / 1 cm^2

so 0.048 mN / cm^2
3. (Original post by mik1a)
One step at a time.

4.8 N is 4800 mN
1 m^2 is 10,000 cm^2 (check you understand why)

so 4.8 N/m^2 is 4800 mN / 10,000 cm^2 = 0.48 mN / 1 cm^2

so 0.048 mN / cm^2
Omg that makes so much sense
I didn't realise the m was mega, I thought it was like mass which is kg
I'm so silly
Thank you!

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4. (Original post by mik1a)
One step at a time.

4.8 N is 4800 mN
1 m^2 is 10,000 cm^2 (check you understand why)

so 4.8 N/m^2 is 4800 mN / 10,000 cm^2 = 0.48 mN / 1 cm^2

so 0.048 mN / cm^2
Hi
I'm still confused lool
I understand you converting pascals to mega pascals
And I know that

4.8Pa = 4.8N/m^2

But how does
4.8N/m^2 = 4800mN/10,000cm^2??

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5. apply a force of 4.8 N to an area of 1 m^2 (i.e. 4.8 Pa)

same as applying a force of 4800 mN to an area of 10,000 cm^2

Exactly the same force, same area, I just changed the units of each.

m is the milli prefix and is one thousandth, so 1 N = 1000 mN, just like 1 m = 1000 mm.
6. Fwiw the prefix for mega is capital M, the case is important

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