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PH1 24th May and PH2 9th June

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Reply 20
Avatar for Tom:)))
Tom:)))
OP
Original post by louisacollier
Ok I don't know how you went wrong then, sorry. If you got 558, it was because n wasn't per m^3


Everything was great except I forgot to use P=FV for the last part for question 1, I completely forgot about it
Yeah I figured out what I did. I found n and then divided it by the length and not the volume 😩
Reply 22
Avatar for Tom:)))
Tom:)))
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The last question really got me! I couldn't get K the only part I couldn't do
Reply 23
Avatar for Sznsnsn
Sznsnsn
1
Original post by Tom:)))
The last question really got me! I couldn't get K the only part I couldn't do


I had k to be 20Nm-1
I did the difference between the 2 values we were given so 4N and 0.2m then used F=kx and the assumption I made was that f is proportional to x
(edited 7 years ago)
Original post by Sznsnsn
I had k to be 20Nm-1
I did the difference between the 2 values we were given so 4N and 0.2m then used F=kx and the assumption I made was that f is proportional to x


That's what I got. Don't know if I quite worded my assumption well enough though. That's what I meant but I didn't write it very well
For anyone who sat the new spec paper yesterday, can you remember the questions on the uncertainties??

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