Physics, Chemistry and Biology: Post your doubts here!

[Allah's Slave]

the question says
what is the WORK DONE by the 250N force...

when the question says what is the WORK DONE, then use the formula
w=force x dis5ance

when the question says what is the GRAVITATIONAL POTENTIAL ENERGY of the object, then u use the formula
w=mgh

Then what's the point of giving the height in the problem?

 

[black widow]

Then what's the point of giving the height in the problem?

CIE likes to confuse the candidates
so those students who dont know the application of the 2 formulas and apply the w=mgh formula will get the wrong answer
in other words, CIE wants to test us y tempting us in to the wrong answer

 

[black widow]

october november 2013 math ?

the oct/nov papers are not released yet so i cant tell u which questions were hard. however, u can ask anyone who has given the paper
@Master Minds, have u given the paper, and if yes plz do help this guy

 

[Master Minds]

the oct/nov papers are not released yet so i cant tell u which questions were hard. however, u can ask anyone who has given the paper
@Master Minds, have u given the paper, and if yes plz do help this guy

I gave physics but not math. as 4 phys i dont remmbr those questions well..... :/

 

[iluvchicken]

what is the "right hand grib rule"
im hopeless at physics. so can you explain it simply please?

thank you

 

[black widow]

what is the "right hand grib rule"
im hopeless at physics. so can you explain it simply please?

thank you

it is the 'right hand GRIP rule'
accordingly it is used when to find the direction of current in a coil and the pole
the thumb shows the pole (N or S) and the fingers show the current direction
this is how u apply it

 

[studyresourcecentre]

Dear Friends,

The very tough journey has now come to an end.

www.studyresourcecentre.in is a platform where you can find all valuable and helpful notes for Cambridge University Examinations.Presently it has a variety of study materials for the Cambrdige IGCSE/O levels and International AS and A levels. The very difficult task of searching for unnecessary notes and wasting your time has now ended.Now you get the opportunity to download as many materials as you want as we have taken years to gather these resources just for you, download at one click and the best of all is it’s files highlighted in RED. Mystudyresource centre includes various Solved past papers,Typed notes,Courseworks,Projects,Case study answers,Long essays,crosswords,ppts and more….

It’s of immense joy to announce you that our website has been launched today.So,so you can share our website to your friends and colleagues and help them because “Sharing is caring”.A very happy New Year in advance.Happy 2014. So what are you waiting for?? Click: www.studyresourcecentre.in


--Parth Mehta--

 

[iluvchicken]

it is the 'right hand GRIP rule'
accordingly it is used when to find the direction of current in a coil and the pole
the thumb shows the pole (N or S) and the fingers show the current direction
this is how u apply it

View attachment 33889

thank you very much

 

[black widow]

thank you very much

np

 

[abdulrehman ammar]

A summaries notes for stoichiometry please

 

[sweetiepie]

A summaries notes for stoichiometry please

https://www.xtremepapers.com/community/threads/useful-stuff-compiled.10273/

 

[black widow]

A summaries notes for stoichiometry please

 

[Adil Twahir]

asalamu alaikum,

does anyone have physics 0625 topical questions?

 

[nana abena]

please can chemical equations be balanced with fractions??

 

[black widow]

please can chemical equations be balanced with fractions??

yes but balancing to such an extent is not possible in the exam
try multipying the fractions by such a number so that the fractions can be converted to whole numbers

 

[nana abena]

please can chemical equations be balanced with fractions??

thanks a lot

 

[Ali Aladdin]

does anyone of u guys have November 2013 chemistry p3
if u do can u give me the link plz

 

[black widow]

does anyone of u guys have November 2013 chemistry p3
if u do can u give me the link plz

https://www.xtremepapers.com/community/threads/cie-oct-nov-2013-papers-with-marking-schemes.31471/

 

[Umair Farooq]

Assalam-o-Alaikum.
Post your Physics, Chemistry and Biology doubts in here and members, along with me will try their best to help you out.

Acid Bases and Salts help please. :/

 

[ammaril]

Assalamualaikum!!!
do any1 of you have an easy way of remembering the tests for gases in chemistry????