Physics: Post your doubts here!

[anastasia grey113]

DW one of my friends scored E and got an A....and other one scored U in biology practical and scored A*

that helped lol

 

[sarmadimran]

threshold max is 90 so you need to score around 30
idk for sure just a rough estimate
the marks r made up like this....not sure tho but thats how i calculate em using the weightage n all

p2 = 53/60 x 46

p3 = 25/40 x 23

p1 = marks in p1/40 x 31

total = sum of all the results obtained above/100 x 130

this should be equal to 90 if u want an A

Thanx a lot...r u sure grades r calculated like this?

 

[anastasia grey113]

Thanx a lot...r u sure grades r calculated like this?

thats what i think cuz weightage is given that way
marks r out of 130 thats 4 sure

 

[Awoudam]

Asalam Alaykum Brothers and Sisters,
Does anyone have access to the Xtremepapers Physics Revision Notes in PDF format???

 

[anastasia grey113]

Asalam Alaykum Brothers and Sisters,
Does anyone have access to the Xtremepapers Physics Revision Notes in PDF format???

y do u need pdf?

 

[Awoudam]

y do u need pdf?

Its much easier than going from one page to the other, and i can print it, do you have it??

 

[anastasia grey113]

Its much easier than going from one page to the other, and i can print it, do you have it??

no i dont
but u can take its screenshots n print

 

[Awoudam]

no i dont
but u can take its screenshots n print

Do you know how I can contact the admin?

 

[anastasia grey113]

Do you know how I can contact the admin?

u can start a convo with badrobot14
i just tagged him here
if he doesnt respond privately msg him

 

[selrey]

Guys do we have to wash the conical flask before performing the next titration in chem prac? ._.

 

[Awoudam]

Guys do we have to wash the conical flask before performing the next titration in chem prac? ._.

This is physics thread

 

[Awoudam]

Guys do we have to wash the conical flask before performing the next titration in chem prac? ._.

Here is chemistry: https://www.xtremepapers.com/community/threads/chemistry-post-your-doubts-here.9859/

 

[selrey]

Here is chemistry: https://www.xtremepapers.com/community/threads/chemistry-post-your-doubts-here.9859/

I knowwww. I asked the same thing there as well but no one's replying XD so if someone here knows the ans pls let me know as soon as possible I have chem prac tomo ;_;

 

[Thelastmoment]

At school during practicals we were asked to wash all the apparatus with the whatever reactant we're gonna put in there first. Like if we are supposed to add in NaOH to the burette we should wash it with a small amt of NaOH before using it for the titration like rinse the burette with a little NaOH.The conical flask though I don't think because if we wash it there's gonna be excess and that means wrong end point. I guess either way good luck tomorrow(..but if the question says dry then you shouldn't wash. )

 

[Thelastmoment]

Guys do we have to wash the conical flask before performing the next titration in chem prac? ._.

Oh and you asked about the next titration of course wash it with distilled water you're provided with it, in the wash bottle, don't use tap water.

 

[anastasia grey113]

Guys do we have to wash the conical flask before performing the next titration in chem prac? ._.

yess

 

[selrey]

Kkk! Thankyou guys!

 

[Thelastmoment]

Out of curiosity though Anyone doing 34 Physics on the 30th?

 

[amina1300]

The cross-section of an Olympic-size swimming pool filled with water. It is not
drawn to scale. The density of the water is 1000kg m–3... Can someone explain how the answer is 3.4 KPa and not 3.5kPa. Q20 winter 2015 p12?

 

[Thelastmoment]

Okay so you have to use the Young Modulus thing:
Y.M= Stress/Strain; Stress= F/A and Strain=e/L
When combined gives you Y.M=FL /Ae
Use this;

Hope this helps.