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Which weighs more: a kilogram of feathers or a kilogram of iron? ' Hint: "They dont weigh the same" :D ...

how much time does a projectile take to reach half of its greatest height?? ...

I have a small doubt. suppose in a reaction of A4 B3 , A gains 3 e- and B loses 2 e- then what will be the n - factor of A4 B3 in that reaction ? i.e the ratio of Mol wt and equivalent wt ? and hence wat will be its euqivalen ...

Q.)The value of ‘a’ fr wch the area of triangle included between the axes and any tangent 2 the curve xay=Лa is constant……..{this is a qstn of arihant difrntial calculus….obj qstn no.26} Options- a) ½ b)1 c)3/2 d) ...

a particle is performing simple harmonic motion along x axis with amplitude 4 cm and time period 1.2 s. The min. time taken by particle to move from x=+2 cm to x=+4 cm and back again is_________ ...

There are 5 ships in a port. 1. The Greek ship leaves at six and carries coffee. 2. The ship in the middle has a black chimney. 3. The English ship leaves at nine. 4. The French ship with a blue chimney is to the left of a sh ...

we know that friction can not propose motion, its just opposes it... is the same true for frictional impulse as well?? say if a body is moving in +ve x - axis nd a frictional impulse acts on the body towards left, then under ...

q) if the tangent at P of the curve y2=x3 intersects the curve again at Q and the straight line OP,Oq makes angles A,B with the x-axis ,where O is the origin then (tan A/tanB) = a)-2 b)-2 c)2 d) 21/2 ...

*** Q3 is dbt only.....rest i have done... *** Q1 Determine sign of roots of equation x2+(3-2a)x-3a+2=0 Q2 If a,b,c are odd integers prove that both roots of ax2+bx+c=0 can not be rational Q3 ax2+bx+c=p has both roots integer ...

PLEASE FOLLOW THE LINK TO SEE THE PROBLEM.HERE IN THE LINK THE LINK GIVEN FOR THE ACTUAL IMAGE DOES NOT WORK.PLEASE GIVE ME THE SOLUTION OF THE PROBLEM AND THE NEW ACTUAL LINK OF THE IMAGE GIVEN IN THE QUESTION.PLEASE SOMEBOD ...

find the value of summation \sum_{r=0}^{2008}\left [ \frac{2^r}{3} \right ] \\ \\\textup{where [.] is GIF} ...

if f(x) is continuos from R→R and attains only irrational values l *Image* then= plz help me out ...

There are n containers having volumes V, 2V, ......., nV. A fixed mass of a gas is filled in all containers connected with stopcock. All containers are at the same temperature if pressure of first container is P then What is ...

f(x)=[x]+[x+1/3]+[x+2/3],where [] is G.I.F and x belongs to R.find the number of points of discontinuty of f(x) in[-1,1]? and mentipon the points?draw the graph.?? plz anwer with full explantion. number of points carry 1 mark ...

if a function f: R→A given by f(x) = ex-e-|x|/ex+e|x| is surjection, find A ...

Three boxes contain 600 balls each. The first box contains 600 identical red balls, the second box contains 600 identical white balls and the third box contains 600 identical blue balls. From these three boxes, 900 balls are ...

A particle is projected with velocity u at an angle q with the horizontal . Find the radius of curvature of the parabola traced out by the particle at the point where velocity makes an angle q/2 with the horizontal. plzz give ...

If G is the centroid and I the in-centre of the triangle, with vertices A(-36,7), B(20,7) and C(0,-8), then, find the value of GI. ...

F(X+Y) + F(X-Y)=2F(X)F(Y),X,Y ≡R AND F(0)=K?? THEN WHICH IS TRUE?? A)F IS EVEN IF K=1 B)F IS ODD IF K=0 C)F IS ALWAYS ODD D)NONE OF THESE ...

a force P act on body of mass 'm' intially at rest and intiates its vertical motion at t=0 .the force decreases at uniform rate and is proportional to the vertical displacement of body.Find the velocity of the body at a heigh ...

we know electric field is a conservative field and so, ∫cloosed loopE.dl=0 but suppose a conducting loop is placed in a changing magnetic field, emf is induced and electrons go round a loop and the work done in taking the e ...

lim(x→1) (x)(1/x-1) ...

*Image* Explain All e conceps , ...

Consider a thin cylinder’s shell with radius r and mass m (inertia mr^2). Two sides of the surface have different characteristics. Outer surface of the shell is a conductor with resistivity ρ and thickness δ(δ<<r). ...

why does K capture happen in some nuclides only?? i mean if at all it happens in some then it shud happen in most of the cases , a nucleus shud capture one s electron!!! what is the criteria that decides that K capture takes ...

Happy Independence Day to all!! ...

Again i realise that chemistry is still the WORST-HIT subject in targetIIT.com (and also in my percentile bar :P) So, as an attempt to encourage NEW minds to study chemistry (which is not that boring once u start studying it) ...

f(x) = (2x-Ï€)3 + 2x - cos x the value of d/dx (f-1x) at x=Ï€ (a) 3Ï€2 + 2 (b) -2 (c) 1/3Ï€2 + 2 (d) 1/3 ...

in NCERT physics (class XI) a formula is given for calculation of error in equivalent resistance of two resistances when they are connected in parallel for eg if two resistances are A and B such that: RA = R1 + ΔR1 RB = R2 + ...

domain of : cosec-1[1+sin2x] [.] : Greatest integer function ...