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YES

LET A BOX IS KEPT OVER A BIG BOX....THEN THERE WILL BE NORMAL FORCE BETWEEN THEM BUT NO FRICTIONAL FORCE THOUGH....BUT OFCOURSE THERE WILL BE REPULSION FOR THE GRAVITY FORCE.....

YES THEY CAN EVEN EXERT FORCES LIKE ELECTROSTATIC FORCES ON EACH OTHER...

@@@hav a chillin time@@@

s chand books........do ncert firstly....and together with books are the best for boards :)

here ,,,,,,,,,,is my problem....didn`t undestand the step...

for equation to have real values...
.......plz do explain.........

Could anyone tell me points about how to find the range of a function.....not good AT it...good at domain not range..

Also tell range of following function

$y= \frac{1}{\sqrt{(x +3) (4- x)}}$

you can refer ML Khanna page 605 for this(2007 edition) ...i ma not clear with it

RATES ASSURED

@@@HAV A CHILLIN TIME@@@

see if you want to clear frames

http://www.goiit.com/posts/list/community-shelf-all-about-frames-the-fun-way-50388.htm

10/10 for the ganesha pic....my friend

10/10....for the theeth

Moment of inertia is the rotational analogue of mass.......like you have mass as the measure of inertia ..you have moment of inertia in rotational motion....

if you calculate the kinetic energy of a rotating body you will get as...

$K=\frac{1}{2} \Sigma m{r}^{2} {\omega}^{2}$

so here m{r}^{2} becomes I ...called as moment of inertia

04/10

HERE IS WHAT I THINK....

CHARGES ARE OF TWO TYPES...POSITIVE AND NEGATIVE...TWO POSSIBILITIES..ATTRACTIVE AND REPULSIVE,,,THOUGH THIS IS ALL CONVENTION...WE DON`T KNOW WHAT IT IS..IT IS TOO FUNDAMENTAL..

GRAVITATIONAL FORCE DEPENDS ON MASS AND IT IS OF ONLY ONE TYPE...NO TWO TYPES AS FAR AS WE KNOW..ONLY ONE POSSIBILITY WHICH WE DON`T KNOW WHY IS ATTRACTIVE..

@@@hav a chillin time@@@

10/10

there will be attraction forces or repulsive forces..whatever..if you do not hold them by some forces..they will come close or move away

gauss law can be proved assuming coulomb`s law to be true...

refer hcv

So, finally the JEE 2008 is over....hope you all have done well...

How was the paper...

the difficulty level........pattern was the same or not as in 2007...

which part was difficult and easy...

how much time it took and all...

please do tell everything here..

@@HAV A CHILLIN TIME@@@

carbene is carbon with only its two electrons of the four involved in bonding..
so it is divalent.......it may have sp2 or sp bonding.....

they are of two types.......singlet and triplet.

the triplet has its two electrons with parrallel spins in two orbitals..linear shape
the singlett..... has them in one orbital only...hence having bent shape