That would make sense too right because p and v are linked by a power relationship of p=v-1 so if you take logs of both sides then logp/logv = -1? Or is this dogey maths xoxo

Reply 608

Bobbina

Did anyone get the v2/v1 = QD-dmg -1 or something like that. I couldn't get that formula no matter the random stuff I subbed in.

Reply 609

Wonkagenius

Original post by oklm

MPa, cm^3 *

I remember it being Cm^3 too

Reply 610

fortified_shi

Original post by Bobbina

Did anyone get the v2/v1 = QD-dmg -1 or something like that. I couldn't get that formula no matter the random stuff I subbed in.

no i couldnt

Reply 611

d4r

Am I the only one who got -0.88 as the gradient.... sh*t
I got 2.6cm^3 for the volume with that

Reply 612

james1242_

Original post by Bryan B03

Astrophysics ppl
Did the first question ask for Ray diagram showing spherical aberration on a converging or diverging lens?

its always converging no? Ive never seen a divering lens for telescopes

Reply 613

Bobbina

Original post by flyinghippo999

That would make sense too right because p and v are linked by a power relationship of p=v-1 so if you take logs of both sides then logp/logv = -1? Or is this dogey maths xoxo

-log(p) = log(1/p)

Reply 614

cata03

Original post by oklm

MPa, cm^3 *

ooh yes it was MPa sorry

Reply 615

Peter_.

Original post by bagels2001

Yh that’s what I thought, what did everyone get for the gradient i roughly remember getting like -1.033 ish

You didn't need to find the gradient

Reply 616

Wonkagenius

Original post by d4r

Am I the only one who got -0.88 as the gradient.... sh*t
I got 2.6cm^3 for the volume with that

I got 11.3, anyone else got that

Reply 617

StupidDog

Well never have to do physics again probably so not reading this thread again, good luck to you all for the rest of your exams, hope they all go well!

Reply 618

bagels2001

What did engineering ppl put for the very last question about why the thermoelectric refrigerator was preferred even though it had a lower COP.
I put sm about how it acts as both a heat pump and refrigerator so usually wasted Qh is utilised by heating up the environment?

Reply 619

fortified_shi

Original post by flyinghippo999

That would make sense too right because p and v are linked by a power relationship of p=v-1 so if you take logs of both sides then logp/logv = -1? Or is this dogey maths xoxo