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A ball is projected on smooth inclined plane in direction perpendicular to line of greatest slope with velocity of 8m/s.Find it's speed after 1 sec. *Image* ...

30.9 gm of (+)2-butanol was taken in a 309ml sloution & was mixed with 15.45gm of (-)2-butanol placed in 154.5ml and the final solution is passed through 444mm tube. What will be the observed rotation (in degrees) for the fin ...

What is the correct IUPAC name of the following compound - ? *Image* A) (2E,4Z,6Z)-4-chloro octa-2,4,6-triene B) (2Z,4E,6E)-5-chloro octa-2,4,6-triene C) (2E,4E,6Z)-4-chloro octa-2,4,6-triene D) (2Z,4Z,6E)-5-chloro octa-2,4,6 ...

Three particles A, B, C of mass m each are joined to each other by massless rigid rods to from an equlateral traingle of side a. Another particle of mass m hits B with a velocity v0 directed along BC. The colliding particle s ...

let f(x)=x^{3}+x^{2}+100x+7sinx then the eq \frac{1}{y-f(1)}+ \frac{2}{y-f(2)}+ \frac{3}{y-f(3)}=0 has 1)exactly one root lying in (f(1),f(2)) 2)booth roots lying in (f(2),f(3)) 3)exactly one root lying in (-∞,f(1)) 4)exact ...

prove that soln of eqn kr+rxa=b where k is non zero scaalr and a and b are non collinear vectors..is of form r= 1/(k2+a2) ( a.b/k a+kb+axb) ...

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A man falls from a height of h metres from a building (free fall) directly onto the ground. The man has to once again travel upwards after t=√ 2h/g seconds violating all possible laws of Physics......How is this possible ? ...

if the squares of a 8x8 chess board are painted either red or black at random 1)the probability taht not all squares in any column are allternating in color 3)the probability that all the squares in any column are of same col ...

What is the length of the strip of all millimetre squares in one square metre, if placed one along side the other? (u must calc. mentally) ...

What is the sum of all the factors of factorial 30? ...

sir ..........the photograph i hv taken for my iit form doesnt have white background.................wat shud i do? shud i go for another photo? the background is blue ...

Consider cosnx-sinnx=1,where n is a natural number and -π<x≤π Q1 When n is an even natural number,the sum of values of x satisfying the equation is ? Q2 When n is an odd natural number other than 1 ,the sum of values o ...

each of the mixtures listed below was placed in a closed container & allowed to stand . which of the following mixtures is not capable of attaining the equilibrium : CaCO3-----CaO + CO2 ?? A) pure CaCO3 B) CaO nd a pressure o ...

. . . . Q1 Suppose 0.27 ,x ,0.72 are in GP.If x is a positive irrational no. and S is the sum of first four terms of such GP.Find S Q2 Let a_n=111....1 .Find no. of primes in sequence a2,a3,a4,a5,a6 n times Q3 Let Let a_n=111 ...

Question. Two steel rods & an aluminium rod of equal length l0 and equal cross-section are joined rigidly at their ends as shown in the figure. ______________________________________ |______________________________________| & ...

I din know under which way to post this... but this was a brilliant brilliant method to prove that sum of squares first n natural numbers is given by permutation and counting principle.. I am giving the hint here and I hope t ...

Hydrogenation of vegetable ghee at 25 c reduces the pressure from 2 atm to 1.2 atm in 50 minutes. find the rate of reaction ...

If ... \lim_{x \rightarrow \infty} \frac{ a \left(2x^3 -x^2 \right) +b \left(x^3+5x^2-1 \right) -c \left(3x^3+x^2 \right)}{a\left(5x^4-x \right)-bx^4 +c \left(4x^4+1 \right) +2x^2 + 5x} = 1 , then the value of (a+b+c) can be ...

Let z_i be in G.P for all i satisfying 1≤i≤n and 1st term is unity. Also z1+z2+z3+....zn=0 Now if z1,z2,z3....znrepresent vertices of a n-sided polygon, find the distance bet circum-centre and incentre of the polygon. P.S ...

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If the atom Fm257100 follows the Bohr Model & the radius of Fm257100 is n times the Bohr radius , then find n : (A) 100 (B) 200 (C) 4 (D) 1/4 ...

The coordinates of the point on the parabola y2 = 8x , which is at mininmum distance from circle x2 + (y-6)2 = 1 are (A) (2,-4) (B) (18,12) (C) (2,4) (D) none ...

ram has to attempt 4 papers each paper containing maximum 'n' marks in how many ways he can get a total of 2n marks ..... note: if u want to use multinomial theorem then also provide proof of multinomial thoerem :) ...

The no. of ways in which 9 identical balls can be placed in 3 identical boxes is __________________ . Ans : 12 Neways i'm posting a method which if you can understand .... explain to the Dark Knight so that I can confuse the ...

(A)Molality of a solution does not depend on Temparature (R)Molarity of a solution depends on temperature Options r the usual Assertion Reasoning ones ...

A nucleus with mass number 220 initially at rest emits an α-particle . If the Q value of the reaction is 5.5 MeV , Calculate Kinetic Energy of the α - particle (A) 4.4 MeV (B) 5.4 MeV (C) 5.6 MeV (D) 6.5 MeV ...

A fair coin is tossed n times. What is the probability that heads do not appear on consecutive tosses? I am giving this question as a continuation of the Tiling of the floor.. (to see how many of you understood the idea) ...

Q 1) \int\frac{x-1}{(x+1)\sqrt{x^{3}+x^{2}+x}}dx Q 2) \int{\left({\tan^{-1}\sqrt{(\sqrt x-1)}}\right)}dx Q 3) \int{(x^{1/3}+(\tan x)^{1/3})}dx Q 4) \int_{1}^{e}\frac{Inx}{x(\sqrt{1-Inx}+\sqrt{Inx+1})}dx Q 5) \int_{\frac{\pi } ...