Physics, Chemistry and Biology: Post your doubts here!

[thats_me]

omg so much
where did u get the 0.15 fr0m?

the table above last reading n thn 10.1 its corresponding reading i.e the resistance that u found.. As the question states use readings in the table

 

[AAnsarii]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w11_qp_62.pdf
1 (d)
won't it b coz x & y r different??
sby PLZ xplain..

 

[thats_me]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w11_qp_62.pdf
1 (d)
won't it b coz x & y r different??
sby PLZ xplain..

i din get u :S wat do u mean by x and y being diff
this question is about the possible causes of inaccuracy

 

[AAnsarii]

i din get u :S wat do u mean by x and y being diff
this question is about the possible causes of inaccuracy

haan...inaccuracy but when he cut d clay model, d mass decreased, so x would increase, rite, lyk 4 moment...clockwise must equal anticlockwise..?

 

[AAnsarii]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w11_qp_62.pdf
also, 3(e)

 

[thats_me]

haan...inaccuracy but when he cut d clay model, d mass decreased, so x would increase, rite?

yes it would but he is using that mass also ,m3 is for the smaller mass
the inaccuracy will be this that extra calculations have been done so there is greater chance of error & at every step the numbers are rounded of so inaccurate

 

[AAnsarii]

yes it would but he is using that mass also ,m3 is for the smaller mass
the inaccuracy will be this that extra calculations have been done so there is greater chance of error & at every step the numbers are rounded of so inaccurate

does he put it on d other side?
sorry 4 annoying u so relentlessly..
jazakillah ne way

 

[thats_me]

http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_w11_qp_62.pdf
also, 3(e)

in the previous page they gave the voltmeter reading right? at its side the range is given
now Vb & Vc have the values higher tha 0.1 & 1 so the next range availible is 10 ,Thus he uses 10

 

[AAnsarii]

in the previous page they gave the voltmeter reading right? at its side the range is given
now Vb & Vc have the values higher tha 0.1 & 1 so the next range availible is 10 ,Thus he uses 10

jazakillah sis ur awesome mashaAllah..

 

[thats_me]

does he put it on d other side?
sorry 4 annoying u so relentlessly..
jazakillah ne way

no its okaye!
The ques states that its repeated so i guess its done again not on the othr side

 

[thats_me]

jazakillah sis ur awesome mashaAllah..

lol thankyuh!
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s08_qp_6.pdf 1b :| hw is this done?

 

[AAnsarii]

lol thankyuh!
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s08_qp_6.pdf 1b :| hw is this done?

i think dat u'd mark d center of d cylinder or more likely u'd take d side measurements, ie if d cylinder is 6 cm, on d meter rule, 1 side should b at 7cm n d other side at 13cm..

 

[NIM]

The drawing isn't good but i hope it helps

ya it helped!!!

 

[NIM]

Here ..
phosphorus has oxidation state +3 so its ready to give 3 electron in order to be stable
Chlorine has oxidatyin state -1 so its ready to gain 1 electron to become stable
so 3 Cl needed to take 3 of P's electrons

thnx i got it!!!

 

[thats_me]

i think dat u'd mark d center of d cylinder or more likely u'd take d side measurements, ie if d cylinder is 6 cm, on d meter rule, 1 side should b at 7cm n d other side at 13cm..

7 & 13? :S

 

[NIM]

The drawing isn't good but i hope it helps

can u give me examples of ionic also

 

[AAnsarii]

7 & 13? :S

ya, if d cylinder is 6 cm, middle should b on 10.0cm, half (3cm) of it should b on either side, 10-3=7cm, 10+3=13cm..
hope its d rite qn

 

[thats_me]

ya, if d cylinder is 6 cm, middle should b on 10.0cm, half (3cm) of it should b on either side, 10-3=7cm, 10+3=13cm..
hope its d rite qn

OKAYEE! yea its the right ques Thankyuh!

 

[kainat husain]

Q1 a)Complete the column headings in the table. That is we have to write units of m-mass and titha-angle. The units will be grams for mass and degree for thita.
Q1 c) Make sure that the 0-180 horizontal line of the protractor is exactly on the bench and the centre of the protractor is at the "zero end of the ruler taped to bench" Look in the figure to spot this. Drawing is optional but if u do, copy the same diagram and indicate the proper position of the centre of the protractor and the horizontal line on the protractor (0-180) should align with/should be exactly on the bench.
Q1 d) Draw (or write) that another meter rule is used to measure the distance between the bench and the elevated end of the original meter rule. MAKE SURE THAT THE RULER IS VERTICAL. Mention that the angle can then be found out by applying mathematics, you don't need to show HOW the angle can be found!
Hope it helped!

thank you sooooo very much dear it really helped JAZAK ALLAH KHAIRAN!
but i even wanna knw the drawin for 2a! it would b really better if u can show the drawin
http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Physics (0625)/0625_s06_qp_6.pdf
in this q1d how will v knw the length and breadth and height dear? :/ like how ill v get the volume?
q5 a how will we draw|? like how to cheak if its horizontal!? :/
and q3 vi- how should v draw tht line :/
thank you

 

[EpicLol]

what about d O?

Oh sry I durped....
Fe2O3 + 3CO ==> 2Fe + 3CO2
this is the right answer