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# PH1 24th May and PH2 9th June Watch

1. (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
2. Yeah I figured out what I did. I found n and then divided it by the length and not the volume 😩
3. The last question really got me! I couldn't get K the only part I couldn't do
4. (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
5. (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
6. For anyone who sat the new spec paper yesterday, can you remember the questions on the uncertainties??

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