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A bullet loses 1/20 th of its velocity on passing through a plank. Assuming the planks exert a constant retarding force, what is the no. of such planks required to just stop the bullet? Options given, but I'd rather someone s ...

The pH of 0.1 M solution of the following salts increases in the order : (A) NaCI < NH3CI < NaCN < HCI (B) HCI < NH4CI < NaCI < NaCN (C) NaCN < NH4CI < NaCI < HCI (D) HCI < NaCI < NaCN < NH ...

The speed of propagation of a wave in a medium is 300 ms-1 . The equation of motion of point at x=0 is given by y=0.04 sin 600 ∩ t (meter). The displacement of a point x=75cm at t=0.01 s is (a) 0.02 m (b) 0.04 m (c) zero (d ...

If 7^103 is divided by 25, then what is the remainder? ...

Ques) If a,b,c are in A.P, then ax +by +c =0 represents : (a)a straight line (b) a family of concurrent lines (c) a family of parallel lines (d) none of these ...

http://www.youtube.com/watch?v=c3asSdngzLs can anyone explain how the thing shown in this video was done.... its very interesting...!!! ...

Cyclohexene on ozonolysis followed by rxn with Zn dust and water yields compund E. Compound E on further treatment with aq KOH yields compound F. Structure of F is _______?? ...

*Image* A short semicircular right cylinder of radius r and weight W rest on a horizontal surface and is pulled at right angle to its geometric axis by a horizontal force F applied at the middle Q of the front edge.Find out t ...

How to decide if a graph is symmetric abt a line or a point? Example when can we say that a graph is symmetric about the line 2x+y=2? ...

IS TEHRE ANY METHOD TO SOLVE THE integrals OF THE FORM \int_{a}^{b}{\frac{px + q}{asinx + b cosx}} ...

THIS THE CLUB OF NON VALENTINES LONELY ONES R INVITED register by writing ur name with a * 1. vishal* ...

A Qn is....... Two air bubbles in water --- (a)attract each other (b)repel each other (c) do not exert ny force on each other (d)may attract or repel; depends on the distance between them. The explaination fr the ans (a) goes ...

\sum_{o}^{n}(-1)^{r} {/^{n}C_{r}} = take cases a)n is odd b)n is even ...

If \frac{1}{\sqrt{4x+1}}\left( (\frac{1 + \sqrt{4x+1}}{2}) - (\frac{1 - \sqrt{4x+1}}{2})\right)^{n} = ax + b x^2 + cx^3 + dx^4 + ex^5, then find n. ...

Paragraph Question (1+px+x2)n = 1+a1x + a2x2 +.....+a2nx2n The remainder when a1 + 5a2+ 9a3 + 13a4 + ......+(8n - 3)a2n is divided by p + 2 is 1. 1 2. 2 3. 3 4. 0 ...

if the sum f an A.P is same for p and q terms, show that the sum of p+q terms is 0........ *Image* S(p+q) >0 from graph ...how can it be 0 ????? and if S(p+q)=0 wat is the other root ...

1)a series f +ve nos is such that a1=4 and an+1=an+ 4/an n>0.then [a100]= (where [] represents greatest integer function) a.28 b.29 c.30 d.31 2)wht can be said abt the planes 2x-4y+2z=5 5x-y-z=8 x+y-z=7.........(multiple a ...

let a,b,c be three vectors such that they hav same mag. if |a-b|2+|b-c|2+|c-a|2=27 then a. a,b,c are coplanar b. a,b,c represent orthogonal triad of vectors c. a,b,c represents sides of a triangle (atleast in magnitude and di ...

*Image* ...

If f(x) is continous in R and is symmetrical abt the lines x=1 and x=2 then which of the following holds. a)f(1+x)=f(x) b)f(x+3)=f(x) c)f(x+2)=f(x) d)none of these. pls explain.i know this will be a two liner but i am not get ...

Draw the graph of y = x2/x2-1 and y = x/x-1 on the same sheet and compare their behavior ...

find the frctional acting on the mass 4kg the options are 24n,8n,18n,10n see... my bro whoos in fiitjee is telling me that opn the block of mass 2kg the frictional force 8n will act so tension will be 2n ... and i solve it bu ...

If D(t) and D(o) are the theoretical and observed vapour densities at a definite temperature and @ be the degree of dissociation of a substance. Then, find @ in terms of D(o),D(t) and n (number of moles of products formed fro ...

In a vessel containing N2.H2 and NH3 at equilibrium,some helium gas is introduced so that pressure increases while temperature and volume remain constant.According to Le Chatelier’s principle, the dissociation of NH3 [A]inc ...

69 The graph plotted between ΔmixingG/nRT versus mole fraction of one component X in mixture *Image* ...

Again some maths questions: Q1. (Multi-Answer) Domain of the function f(x) = log_{[x-1]}(sin^2\pi x) \; is \;x\epsilon (3,\infty )-\begin{Bmatrix} p, & p+1, & p+2, & ..., & n \end{Bmatrix} , where [.] denotes greatest integer ...

One side of radius of curvature R2 = 120 cm of a convex lens of material of refractive index μ = 1.5 and focal length f1 = 40 cm is silvered. It is placed on a horizontal surface with silvered surface in contact with it. Ano ...

For the dissociation reaction N2O4(g)→2NO2, Find the degree of dissociation(@) in terms of Kp and total equilibrium pressure P. ...

Find the locus of intersection of 2 circles(equal) which are described on 2 sides EF and EG of a triangles as chords in a rectangular hyperbola whose centre is middle point of FG and which passes through E,F,G ...

wht is the Geometrical interpretation of the integration by parts formula???? plz give explaination ...