Physics, Chemistry and Biology: Post your doubts here!

[Dtrickster]

Gouki_Destruction what came general picture...plz

 

[Gouki_Destruction]

Gouki_Destruction what came general picture...plz

It was a hard exam , mostly it was bout electrolyss

 

[Dtrickster]

Thanks a lot heading 4 exam now

 

[Dtrickster]

Chemistry:Compound of hard and not-hard elements
Paper2: 5-6 marks max
Paper4: 4 marks max

 

[Gouki_Destruction]

Chemistry:Compound of hard and not-hard elements
Paper2: 5-6 marks max
Paper4: 4 marks max

Nice , 3 marks 4 me combined P2 n 4 xD

 

[Dtrickster]

LOL we'll see 16 August

 

[Gouki_Destruction]

LOL we'll see 16 August

14th August

 

[Dtrickster]

Ok....*reloading guns*

 

[Gouki_Destruction]

Ok....*reloading guns*

That was random :-/

 

[Dtrickster]

I have got very concise speech but I'll explain
To reload a gun means to prepare i.e u have warned me and I am preparing for the enemy (results)
The word gun can b an effect of a competition,a war (exam)
Using the word s in guns means preparing thoroughly (in large amounts)
My sentences fill books that my sentences make....

 

[Gouki_Destruction]

I have got very concise speech but I'll explain
To reload a gun means to prepare i.e u have warned me and I am preparing for the enemy (results)
The word gun can b an effect of a competition,a war (exam)
Using the word s in guns means preparing thoroughly (in large amounts)
My sentences fill books that my sentences make....

Dude ik what it meant , but the way u used it was kinda random . Where ru from ??

 

[Dtrickster]

Hmm this is lyk the tenth time I get this question 2 day Zambia.

 

[Gouki_Destruction]

Hmm this is lyk the tenth time I get this question 2 day Zambia.

Ok , what is ur name ??

 

[Dtrickster]

Ibrahim wbu

 

[Getsuga juujisho]

Salamu alaykum, why is it B?

 

[ANAS_15_2002]

View attachment 63656


Salamu alaykum, why is it B?

its kind of a common sense type of question it cant be D at all beacuse its exceeding the limit cant be C because it cant stay the same and cant be A because it cant go that low so its B, thats what i think

 

[Getsuga juujisho]

its kind of a common sense type of question it cant be D at all beacuse its exceeding the limit cant be C because it cant stay the same and cant be A because it cant go that low so its B, thats what i think

thanks but nvm about that. what about THIS QUESTION?


why is it D?

 

[ANAS_15_2002]

thanks but nvm about that. what about THIS QUESTION?
View attachment 63659

why is it D?

no idea lol

 

[Ayesha Asif333]

thanks but nvm about that. what about THIS QUESTION?
View attachment 63659

why is it D?

Because we are working with the same volume of that conducting putty, an increase in c.s.a will bring a decrease in the length by the same factor as the c.s.a ( Volume of cylinder=pie r square * length/height)

So hopefully u would be knowing that doubling the diameter would increase the c.s.a by 4 times {That if the diameter of 5 gives u an area of 25, then a diameter of 10 will give u an area value of 25*4}

the length will then decrease 4 times of the original value

So by the formula u can work out or otherwise that there will be an…

R=l/4 / 4A

R=l/4*1/4A

R=l/16A

… over all decrease in resistance by a factor of 16.

 

[Ayesha Asif333]

thanks but nvm about that. what about THIS QUESTION?
View attachment 63659

why is it D?

Adeen Atif does this question looks familiar to you? :'D