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So this is for the people who were constantly asking for techniques of solving a sudoku. Although, I had a belief that one can never 'learn' the art of solving sudoku - that only comes with practice, I found this website whic ...
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Note: This is a question for people from classes 7 to 10 A Helium balloon is accelerating up (yes, we all know this is possible. So this is not a hypothetical situation but a practical one). So, note these things: 1) The ball ...
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Mechanics: *Image* The coefficients of friction are μs = 0.40 and μk = 0.30 between all surfaces of contact. Determine the force P for which motion of the 30-kg block is impending if cable AB (a) is attached as shown, (b) i ...
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I have posted this write up on facebook... You can have a look if you want... To be able to see it you need to like this page first (the story has been posted in this page): http://www.facebook.com/i4s.co.in Then the link to ...
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A cylindrical tub contains water. We are only considering one axial plane of the cylinder (one that passes through the axis) The cylinder is now rotated about it's axis with constant angular velocity. Write the equation of th ...
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1) n-factor is defined as: a) Number of moles of electrons either gained or lost per mole of reactant. b) Number of electrons either gained or lost per molecule of reactant. question: which is correct? A) a B) b C) both D) no ...
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Vm = man's velocity (w.r.t. stationary frame of reference viz. ground) Vw = river's velocity (w.r.t. stationary frame of reference viz. ground) Vmw = man's velocity w.r.t. the river. Given, |Vmw| = |Vw| = v width of the river ...
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We know an unit cell is something that has all the characters of the entire solid.. or in other words, it is the prototype for the entire solid.. We also know that in CCP we observe ABC-ABC layering.. Can you show ABC-ABC lay ...
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Classify the 10 compounds given below into three groups: a) Aromatic. b) Anti-Aromatic. c) Non-Aromatic. Mention reason for every grouping! [1] *Image* *Image* *Image* *Image* *Image* *Image* *Image* *Image* *Image* *Image* ...
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#include <stdio.h> main () { int n; printf("enter a number "); scanf("%d",&n); printf("\nthe square of the number is "); printf("%d\n",n*n); } program is right (according to me).. it works fine for small numbers.. but w ...
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Today is the day when our beloved mentor Anant Sir a.k.a kaymant was born.. May God bless him with all happiness on this day! Happy Birthday Sir! [1] ...
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Our dear member Ricky, is going to give his ISI entrance interview on 21st of this month. I wish him all the best for his day.. May his dreams come true! [1] ...
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*Image* m1=m m2=m M =4m *Edit: system was initially released from rest. All surfaces frictionless! Find the acceleration of all the three blocks and the direction of acceleration.. More interested to see the relations between ...
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reviving..! [1] Draw the graph of [xy]=1 [.] denotes greatest integer function. ...
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An ionic compound AB2 has cubic closed pack structures, A occupying lattice positions and B occupies only one kind of void throughout (either tetrahedral or octahedral). a) what kind of void is occupied by B? b) what percenta ...
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Some beginner will also be able to answer I guess.. So anyone with the answer please help: What will be the difference if I write: #include <iostream> using namespace std; int main() Or, #include <iostream> int ma ...
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27. Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following statements is most appropriate ? (a) The number of free electrons for conduction is significant only in Si and ...
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The molecules MLx is planar with 7 pairs of electrons around M in valence shell. The value of x is ... ?? Integer type.! ...
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Q: A ball hits the floor and rebounds after an inelastic collision. In this case, a) the momentum of the ball just after collision is the same as that before collision. b) the mechanical energy of the ball remains same during ...
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I am confusing over basic probability..! Please help out...! Suppose a bag has 5 red 3 white and 2 black balls..! The probability of getting one red and one white ball is..? I am confusing over the following two things: a) 5/ ...
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If I(m,n)=\int_{0}^{1}{t^m(1+t)^ndt} , then the expression for I(m,n) in terms of I(m+1,n-1) is: a) 2n/m+1 - n/m+1 I(m+1,n-1) b) n/m+1 I(m+1,n-1) c) 2n/m+1 + n/m+1 I(m+1,n-1) d) m/n+1 I(m+1,n-1) DISCLAIMER:: Show Steps..! Els ...
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\int \left(tan^{-1}x \right)^{2}dx ...
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1. Why are alkynes less reactive towards electrophilic reagents like H+ than alkenes??? 2. How to prepare benzene from lime? 3. What is chloral? 4.When gas A is passed through dry KOH at low temperature, a deep red coloured c ...
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*Image* my answer: 2-phenylcyclopent-1-ylmethanol given answer: 2-phenylcyclopent-3-ene-1-ylmethanol am i correct?? if not explain by which mechanism LiAlH4 reduces! :) thanks in advance! [1] ...
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point out the more stable enol... A) Ph-C(OH)=CH-COOEt B) CH3-C(OH)=CH-C≡N also give your reason!! :) thanks in advance! :D ...
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organic chemistry! :( 1) Arrange according to Acidity.. a) benzoic acid, b) para-methylketo-benzoic acid, c) ortho-methylketo-benzoic acid [where methylketo means -COCH3] Answer given: b>c>a (reason: H-bonding in c make ...
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A class 5 sum my sister showed me and i could not do..!!!! A+B+C+D=152 D+E+F=117 find D !!! mujhse class 5 wala sum nahi huwa!! :(( ...
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What is the hybridisation used by Cl in ClO2- a) sp3 b) sp2 c) sp d) NOT!! give full expl!! ...
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results out! who all got thru in various streams?? ...
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1) (a doubt) If f(x) = x2sin 1/x , x≠0 x, x=0 then find f'(0) if it exists... 2) (not a doubt) Given f(x) = |x| and g(x) = |x3|. Do the derivatives, f(0) and g'(0) exist? Explain!! :P please give detailed solution for the f ...
