Biology; Chemistry; Physics: Post your doubts here!

[Dark Destination]

advantage railway lines to fil gaps
disadvantage : tyres
what have u been studying today?
i dont knw how i'll manage chem in one day

Just woke up. Z_z

Well, i'm going to study Business studies today.
Will have to manage chem in one day. .-.

 

[Dark Destination]

Railway tracks was disadvantage

I wrote RAILWAY LINES. Is that correct? Are you sure?

 

[DaniyalK]

can u tell the colour of some gases. i only knw of oxy, co2, ammonia, chlorine, so2

There aren't many others. Bromine is reddish brown. Iodine is black solid and purple gas.

 

[Ram97]

I wrote RAILWAY LINES. Is that correct? Are you sure?

Yeah

 

[DaniyalK]

F was 3.33 today, in that Hydraulic press question.

How did you get 3.3?

 

[Dark Destination]

How did you get 3.3?

5/1.5

 

[Dark Destination]

The question about EXPANSION.

I wrote Solids expand Largely less than liquids.
And Gases expand largely more than liquids.. Something like that. Both of them weren't ''Slightly''.. :/

 

[Lilly2318]

Just woke up. Z_z

Well, i'm going to study Business studies today.
Will have to manage chem in one day. .-.

how many subjects are u taking? Ur not a human! so tomorrow u have 2 pprs. hows prep for eng

 

[DaniyalK]

5/1.5

wat. Isn't Force = Pressure x Area?

 

[Ram97]

5/1.5

U got it wrong. Force was 50N it was 50/1.5=33.3 N/cm^2

 

[Lilly2318]

The question about EXPANSION.

I wrote Solids expand Largely less than liquids.
And Gases expand largely more than liquids.. Something like that. Both of them weren't ''Slightly''.. :/

in first i wrote much larger in second i wrote slightly
i think mines wrong
some1 plz ans

 

[Ram97]

wat. Isn't Force = Pressure x Area?

Yes

 

[Dark Destination]

how many subjects are u taking? Ur not a human! so tomorrow u have 2 pprs. hows prep for eng

13.

Well, i haven't prepared for English. I never do.
How to write Summary and stuff, though? Any useful tip?

 

[Dark Destination]

Yes

The first part was 33.33..
But the next was 3.33.

The part where they asked for F.. that was 3.33.. Did you do that?

 

[Dark Destination]

wat. Isn't Force = Pressure x Area?

Nah.

 

[Ram97]

The first part was 33.33..
But the next was 3.33.

The part where they asked for F.. that was 3.33.. Did you do that?

That was 166.6 something like that

 

[Lilly2318]

HEy Guyz . who hv problem in summary writing including me http://www.olevelpakistan.com/2012/09/149/. Its a useful website of my teacher/sadly she left

 

[DaniyalK]

The first part was 33.33..
But the next was 3.33.

The part where they asked for F.. that was 3.33.. Did you do that?

If pressure was 33.33 then Force = 33.33 * 5 = 166.7 N

 

[Dark Destination]

That was 166.6 something like that

That's what i am saying. It was 3.33, not 166.6.

 

[Ram97]

We had to take same Pressure as it remains same in hydraulic