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Catalogs Discussion Forums -> Modern Physics -> nowtons first law and second law exam -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Hello dear


Newton gave three laws related with motion


First Law  : " Every object maintains its state of rest or of iniform motion along a straight line unless acted on by an external force "


 


Second Law: "The rate of change of momentum of a body is directly proportional to the force applied to it "


 


Cheers...................

Catalogs Discussion Forums -> Analytical Geometry -> parabola question -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

hello dear..


here ,we have to apply the concept of       

( SS1  =  T2 )


 



(1)                                     (y2  - 4ax ) *   (k2 - 4ah)  =  [ yk -  2a (x+h) ]2


above is the pair of straight line which is the tangent from point p to the parabola...


 


angle a and b with axis of parabola,find locus of p for a+b=900


a = slope of one tangent


b = slope of second tangent


m1m2   = 1  from the given condition ,tak tan of (a+b)


 


find the value of m1m2    from the equation 1,you will get the answer

Catalogs Discussion Forums -> Mechanics -> rotational motion -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

hello dear pls give the diagram,so that i can solve.........

Catalogs Discussion Forums -> Physical Chemistry -> the ice is floating on water when it is completely melted what happens to the level of wa -> Go to message
This Post 9 points    (Olaaa!! Perrrfect answer.   in 3 votes )   [?]

Hello dear


there will be no change in water level.


Twister:if the peice of stone is freezed inside the ice,what will be the change when ice melts?


ans:the level of water will decrease..............


 

Catalogs Discussion Forums -> Counselling Zone -> Addicted to social networkin sites...pls help me out -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

hello dear


this is orkut or facebook or ibibo or anyother site same rule is for all the bad habbits.............


Cheers........................

Catalogs Discussion Forums -> General Physics -> I AM APPEARING FOR JEE-2009. WILL H.C.VERMA BE SUFFICIENT FOR MY PHYSICS PREPARATION -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Hello dear


along with HCV also do the ARIHANT........


Cheers..................

Catalogs Discussion Forums -> Mechanics -> IMP OBJ QN..!! -> Go to message
This Post 7 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]

Hello dear


ans is (a)42N


here acceleration is=48/(6+2) =6


and the tension at mid point of string would be = (6+1) * 6=42N


Cheers..................

Catalogs Discussion Forums -> About IITs and JEE -> hey can som1 tell me which website 2 chec appn status of jee ?form? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Hello dear


http://jee.iitd.ac.in/form_no2.htm                                                             (IIT-DELHI)


http://www.jee.iitb.ac.in/form_no2.htm                                                   (IIT-MUMBAI)


http://www.jee.iitm.ac.in/form_no2.htm                                                  (IIT-MADRAS)


these are the links from where you can know the status of ur form.....i think 3rd one is ur nearest IIT,coz ur from banglore.....(got from ur profile)


 


Cheers..........................

Catalogs Discussion Forums -> Mechanics -> does time period of spring pendulum depends on gravity -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Hello dear


i am also agree with 3774,that period of spring pendulam doesn't depends on gravity.


Cheers.......................

Catalogs Discussion Forums -> Coaching Institutes & Course Material -> Is Aakash a good institute to prepare for CBSE . If yes which type of course -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

hello dear..


i cant comment on this...but i think u can go for aakash for CBSE PMT

Catalogs Discussion Forums -> Trignometry -> solve it please -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

sin-1 (1-x)    -   2 sin-1 x


sin-1 (1-x)    -   2 sin-1 x  +  sin-1 1 - sin-1 1


  (  sin-1 (1-x)  - sin-1 1   ) -   2 sin-1 x     + pi / 2


apply the formula of         ( sin-1 x  -  sin-1   y)


sin-1 [2x(1-x2)1/2]  -   2 sin-1 x     + pi / 2


2 sin-1 x   -   2 sin-1 x     + pi / 2


pi / 2


proved


 

Catalogs Discussion Forums -> General Physics -> what is lucas acid -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

comon dude..it is quite easy ...i still reme,ber the answer ,it is anhydrous ZnCl2 + HCl

Catalogs Discussion Forums -> General Physics -> what is ultrasonic waves -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

hello dear..


Nice text is given above..


all they have high freeuenices and hence low wavelength,they move with avelocity of sound

Catalogs Discussion Forums -> General Physics -> Find the area bounded! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

hello dear..


integrate it from 0 to 1 and answer is 1 unit2

Catalogs Discussion Forums -> General Physics -> what is band width? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

hello dear..


It is the difference between the highest and lowest resonanting freequencies

Catalogs Discussion Forums -> Magnetism -> A 28 turn coil with average diameter of 0.02m is placed perpendicular to a magnetic field -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

hello dear..


 


EMF =     -   d (fi) / dt....


          EMF = - A (dB / dt) cos @


          EMF   = - n A (dB / dt) cos @


@ = 900  


A = ( pi D2  /  4 )


dB / dt =  (3000 - 8000) / 4


n = 28


now,put values and solve it

Catalogs Discussion Forums -> General Physics -> what is surface tension? -> Go to message
This Post 7 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]

Hello dear


the property of liquid due to which its free surface tries to have minimum surface area and behave as if it were under tension somewhat like a stretched elastic membrane is called surface tension...


 


Cheers..........

Catalogs Discussion Forums -> Counselling Zone -> Since I have to give jee on 2010.I want to noe wat entrance exams i can give -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Hello dear


you can write DCE,its good exam,and your state level eng exam (state CET)


Cheers................

Catalogs Discussion Forums -> Mechanics -> rotation -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

Hello dear


Here I=ML2/12

and I=MK2

so MK^2=ML2/12

so we get


K=L /2 root(3)


Cheers.................

Catalogs Discussion Forums -> Counselling Zone -> Addicted to social networkin sites...pls help me out -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Hello dear


try to keep busy urself as much as you can.maintain ur interest in study and somewhere else,this is very big problem now a days,give 4 min for you to think that what is most important for you in ur life now a days.and if you get the answer follow that.assign preiority of various jobs and walk according them....u can also delete ur account,because when in ur life you will acheive something then nothing is better tan it,ur profile can be created again,but this time will never come back again,means this time will create ur good Profile on the site of ur Life.


ALL THE BEST.my wishes are with you,but pls follow me...


Cheers...........................

 
 
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