Question 28: air pressure in a bubble...? (1 Viewer)

[danielle93]

Does anyone remember what they wrote for "write an equation relating P, V and A, where A is a constant"

I think mine was like P=V x A

And i used it to find A = 1.5

Does anyone know if this was right? What did you guys have?

 

[Weezle]

P = a/v,

and A = 1.5

 

[jessxxxr]

yayyyyyyy i got that too

 

[2011_]

mine was P= a / v also. They just tried to trick people by saying a rather than k.

 

[MichelleV]

I got P=a/v as well.

It was divided because it varied inversely, not directly. A lot of people at my school skipped the inverse chapters in class and assumed it was direct variation :/

 

[WorryWartCob]

I got P=a/v as well.

p = a/v

3 = a/2
X2

6=a

 

[MichelleV]

I got P=a/v as well.

p = a/v

3 = a/2
X2

6=a

I got a=6 as well.


Yay

 

[2011_]

I don't remember what I wrote, but I think I would have got 6, and used almost identical working to MichelleV.

 

[WorryWartCob]

I don't remember what I wrote, but I think I would have got 6, and used almost identical working to MichelleV.

That was my working but yeh <3

 

[2011_]

That was my working but yeh <3

Sorry! I'm obviously over tired, can't even read!!

 

[Elliee]

ok good I got A = 6!

 

[johnnysins]

yeah it was 6

 

[LonelyWolf]

faark

 

[sheeshkaba]

Thank God.
I got P=a/v
A=6.
I was seriously stressing about that question.

 

[WorryWartCob]

Thank God.
I got P=a/v
A=6.
I was seriously stressing about that question.

but then P = 1.5

 

[MichelleV]

but then P = 1.5

Yes, P was meant to equal 1.5 in that question.
You still needed to find A=6 though as your constant for both that question and the next part

 

[danielle93]

faark

Thoughts exactly...