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This is a good question from Resnick Halliday Those who can will do it in a flash otherwise keep thinking for the whole day and you wont get it ;) Find the maximum heap (Height) that sand can make in a circle of radius of R. ...

What is constraint equation..?? First a few examples of constraint equation a) If there is a stone tied to a rope that you are whirling around your head.. there is a constraint equation. b) If there is a body kept on the floo ...

I have certain queries in equilibrium- 1.Why equilibrium cannot be attained in a open container? 2.What is effect of decreasing pressure on the position of equilibrium? 3.What are the units of Kp & Kc? ...

A uniform rod of mass=2kg and length l=1m rests upon a smooth horizontal surface.One of the ends of the rod is struck with impulse=2Ns in horizontal direction perpendicular to the rod.As a result the rod obtains a momentum=2N ...

A (x1,y1) is an external pt. on the circle x2+y2=a2.a variable straight line is drawn through A cutting the circle at B n C.if P is a pt. on BC such that AB,AP,AC r in A.P.,then locus of p is??? ans.x(x-x1)+y(y-y1)=0 ...

two circles touch the x-axis n the line y=mx.they intersect at(9,6) n at one more pt. n the product of their radii is 117/2.then the value of m is.... ans.2√2 ...

is there individual cutoff these time........... if yes then what would be it........ ...

blood is said to be isotonic with 0.85%[wt/v].NaCl solution at 40degrees celsius.assuming complete dissosiation of nacl .calculate total concentration of various solutes in blood .also report its approximate freezing point. ...

If (1+3+5+...+p)+(1+3+5+..+q)=(1+3+5+..+r) where each set of parantheses contains the sum os consecutive odd integers as shown ,the smallest possible value of p+q+r,(where p>6) is ??? ...

ABC and ABC' be two non congruen ttriangles with sides AB=4, AC=AC'=2√2 adn angle B=30°. The absolute value of the difference between the areas of these triangles is ...

for 0<θ<π/2, th esolutions of \sum_{m=1}^{6}{cosec(\theta+(m-1)\pi/4)}cosec(\theta+(m)\pi/4)=4\sqrt{2} is (are) A) pi/4 B) Pi/6 C) pi/12 D) 5pi/12 ...

guyz...did any one of u luk at that N-N bond walla question from another direction yesterday...the q. that says which of the following have N-Nbond? the options if i am correct were N2O N2O3 N2O4 N2O5 many of u must have mark ...

yaar!! can any one explain JEE 2009 paper 2 the reducing sugar Q? I am getting B,C? ...

1) A particle of mass 10^-2 kg is moving along the positive X - axis under the influence of a force F(x) = -k/2(x^2) where k =10^-2 Nm^2 . At time t=0,it is at x = 1.0 m and its velocity is v=0 a)find its velocity when it rea ...

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The Henry's law constant for the solubility of N2 gas in water at 298 K is 1.0×105 atm. The mole fraction of N2 in air is 0.8. The number of moles of N2 from air dissolved in 10 moles of water at 298 K and 5 atm pressur ...

*Image* FIND THE LOCATION OF THE FINAL IMAGE!!!!!! ...

In the following carbocation, H/CH3 that is most likely to migrate to the positively charged carbon is A) CH3 at C-4 B) H at C-4 C) CH3 at C2 D) H at C2 ...

What do u think : don't read beyond if u are unfamiliar with the domains u r treading in : This yrs IIT paper -> WTF or WTS ...

chem paper 2 for d first order rxtion A-->P .wala q wats d value of Ea ??? ...

Sir whenever i did tension related problems there was always a wire-mass system n the mass is attached to 1 end of the wire..but in this prob its kind of different..i cant find the tension.. Q. When a bird of weight W sits on ...

from where i would get viteee sample papers ........... ...

Among the electrolytes Na2SO4, CaCl2, Al2(SO4)3 and NH4Cl, the most effective coagulating agent for Sb2S3 sol is (A)Na2SO4 (B)CaCl2 (C)Al2(SO4)3 (D)NH4Cl ...

need some help in physics. i am starting this thread constraint equations. plz post the method of writing constraint equations for three- four cases of laws of motion and plz also advice how to write the constraint equations ...

A plane divides space into two halves. One half is filled with a homogeneous conducting medium and physicists work in the other. They mark the outline of a square of side a on the plane and let a current I_0 in and out at two ...

let f:[1/2,1]→[-1,1] is given by f(x)=4x3-3x then f-1(x) is given by 1. cos (1/3 cos-1x) 2. 3cos(cos-1x) 3. 3sin(sin-1x) 4. 3sin-1(sinx) 5. sin(1/3 sin-1x) ...

If the line joining ortho centre and circum centre of triangle ABC is parallel to AC ,then tanA,tanB,tanC are in A. AP B. GP C. HP D. None ...

The resistance of the shunt required to make the range n times for an ammeter of ressistance R is (a) nR (b) (n –1)R c) R/(n –1) (d) R/n ...

Two tourists who are at a distance of 40 km from their camp must reach it together in the shortest possible time. They have one bicycle which they decide to use in turn. One of them started walking at a speed v_1=5\ \mathrm{k ...

Scientists are woring hard to develop... In the core of nuclear fusion reactor, the gas becomes plasma becasue of A) strong nuclear force acting between the deuterons B) Coulomb force acting between the deuterons C) Coulomb f ...