Anyone good at maths or physics, have trouble with unit conversions.

saitrix

saitrix

saitrix

Soldato
Joined
2 Jun 2003
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Nottingham
Hi,

I am struggling to convert 2 bits of info I have into SI form, can anyone shed any light on it?

questionse7.png
 
Micro (µ) is x 10^-6 so...
0.000450

And Giga (G) is x 10^9 so...
207000000000

I think.

edit:

lol, what am I thinking, didn't see the m^4 and the N/m^2

Fail.
 
All are conversions along the lines of 10^x.

The first one is micrometres to metres, so a factor of (10^6)^-4 is the converstion.

Second one is just linear as it's GN -> N, one GN = 10^9 N so the conversion factor is 10^9.
 
Last edited:
450µm^4 = 0.000450m^4

207GN/m^2 = 207000000000N/m^2

i think :p

edit - ok ignore me, just read the posts above, im probably wrong too :p
 
Mr^B said:
micro = 10^-6
Giga = 10^9

googled in about 5*10^-6 seconds.

:)
Click to expand...

And if you thought about it then you would realise it isn't quite so straight forward as that. ;) I already knew what both micro and giga was, it was the powers that I wasn't sure how it affected it.
 
Dave said:
All are conversions along the lines of 10^x.

The first one is micrometres to metres, so a factor of (10^6)^-4 is the converstion.

Second one is just linear as it's GN -> N, one GN = 10^9 N so the conversion factor is 10^9.
Click to expand...

Aha, exactly what I wanted thanks! Forgot about with the N/m^2 that it is always going to stay per metre, even with the change of sign. Thanks. :)
 
You didn't explain that you didn't know what u and G meant, just that you couldn't convert them, which is why I posted what they meant.

I realise it's not straightforward, but as I assumed you were asking for help with homework, give a man a fish, etc...

:)
 
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