Help with a pascals conversion please!

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    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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    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
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    (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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    (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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    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.
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    Fwiw the prefix for mega is capital M, the case is important
 
 
 
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