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Physics, Chemistry and Biology: Post your doubts here!

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Aayan Muttaqi

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I once saw a classified collection of physics questions. I didn't save the link, and I lost it. I need it for the momentum questions. If you know of any website or link please post it. I really need it.
Thank you.
 
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Aayan Muttaqi

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This question, for some reason, I found it incredibly mind-boggling.

The helium in the cylinder has a volume of 6.0 × 10^–3 m3^-1 (0.0060 m^3) and is at a pressure of 2.75 × 10^6 Pa. (i) The pressure of helium in each balloon is 1.1 × 10^5 Pa. The volume of helium in an inflated balloon is 3.0 × 10^–3 (0.0030 m3). The temperature of the helium does not change. Calculate the number of balloons that were inflated.
 
Ayesha Asif333

Ayesha Asif333

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Aayan Muttaqi said:
This question, for some reason, I found it incredibly mind-boggling.

The helium in the cylinder has a volume of 6.0 × 10^–3 m3^-1 (0.0060 m^3) and is at a pressure of 2.75 × 10^6 Pa. (i) The pressure of helium in each balloon is 1.1 × 10^5 Pa. The volume of helium in an inflated balloon is 3.0 × 10^–3 (0.0030 m3). The temperature of the helium does not change. Calculate the number of balloons that were inflated.
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same here...had to think alot abt it
 
A

Aayan Muttaqi

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Ayesha Asif333 said:
s 2016/ 43/ q 4 part a part 2
anyone understands the graph?
Click to expand...
Take a point from the graph. A wholesome point. I took the point (0.10,2). Now, I have a value for pressure and a value for volume. The question asks us to determine the volume at 0.10 MPa . We know P1*V1=P2*V2 . Substituting gives us
2*0.10=0.10*V2
V2=2 m^3
 
Ayesha Asif333

Ayesha Asif333

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Aayan Muttaqi said:
Take a point from the graph. A wholesome point. I took the point (0.10,2). Now, I have a value for pressure and a value for volume. The question asks us to determine the volume at 0.10 MPa . We know P1*V1=P2*V2 . Substituting gives us
2*0.10=0.10*V2
V2=2 m^3
Click to expand...
Aayan Muttaqi said:
If you were able to extrapolate the graph until 0.10MPa , you would see that the volume will be 2 m^3.
Click to expand...
Thank you
1, 0.2
5,0.04
10, 0.02. these points can also be used too
And yes, ure right abt the graph
 
Adeen Atif

Adeen Atif

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Im so nervous for todays exam,But on the positive side this will be our last exam than we will be FREE!
 
Ayesha Asif333

Ayesha Asif333

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Adeen Atif said:
I actually dont wanna be honest right now.
But I think I SCREWED THE PAPER!
How was yours?
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I'll lose max of 6 marks, i think
We got
No Dc motors question
no Ac generator question
no use of flemings rule
no scale diagram
no barometer/manometer question
No sch hc ques
Nothing related to force and extension
What more do we need?
 
Adeen Atif

Adeen Atif

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534
Reaction score
6,358
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503
Ayesha Asif333 said:
I'll lose max of 6 marks, i think
We got
No Dc motors question
no Ac generator question
no use of flemings rule
no scale diagram
no barometer/manometer question
No sch hc ques
Nothing related to force and extension
What more do we need?
Click to expand...
Are you forgetting that stupid half life question?
 
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