Friday
August 29, 2014

Posts by Krishna


Total # Posts: 19

maths
the distance between two stations is 340 km two trains start simultaneously on parallel tracks to each other . the speed of one of them is greater than that of the other by 5 km/hr. if the distance between the two trains after 2 hrs of their start is 30 km , find the speed of ...
July 15, 2013

physic
a sportcar moving from rest 0 to 100km/h ..there hanging a pendulum in the car..what will be the angle pendulum can make with vertical line??
May 27, 2013

Algebra
the ans is 0
March 18, 2013

Maths
2m
November 20, 2012

chemistry
for depolarization of 1 mole of KMnO4, the moles of H2O2 required is_________
October 15, 2012

College Physics
A body of mass m breaks up into 2 parts of rest mass m1 and m2 with velocity v1 and v2 ,what will be the energies of m1 and m2 in terms of m,m1,m2 and c,the velocity of light.
October 4, 2012

Physics
A body of mass m breaks up into 2 parts of rest mass m1 and m2 with velocity v1 and v2 ,what will be the energies of m1 and m2 in terms of m,m1,m2 and c,the velocity of light.
October 4, 2012

chemistry
2.35*10^-4M,,Mg(OH)2 what is the pH of this solution
June 18, 2012

Chemistry
SIR PLEASE EXPLAIN THE ANSWER
April 1, 2012

calculus--please helpp
thanks so much!
October 14, 2011

calculus--please helpp
if the line 3x-4y=0 is tangent in hte first quadrant to the curve y=x^3+k, find k. all i know is that its related to finding a derivative and i m basically completely lost....can please someone provide me some help?????
October 14, 2011

Physics
What is boyle's law?
August 23, 2011

puzzle
Who to join 9 points place in a form of square in only 4 moves witg the help of two points place in outer square
June 5, 2011

Chemistry
C6H6 + (CH3)3Cl -AlCl3---> C6H5(CH3)3 C6H5(CH3)3 ---- HNO3/H2SO4--> para-NO2 C6H5(CH3)3---- major ortho-NO2 C6H5(CH3)3---- minor
February 17, 2011

Chemistry
Quinine has a tertiary amine group so acts as base QN + H2O -----> QNH+ + OH- given pka is 8.52 -log ka=8.52 ka= 3*10^-09, for conjugate acid base pair at 25degrees Celsius kw= ka*kb therefore Kb= kw/ka = 10^-14/ 3*10^-09 = 3.4 *10^-06 from eqation kb=[QNH+][OH-]/[QN] QN + ...
October 29, 2010

Physics
Assume that a deposit of oil is located 2000 m directly below. Estimate the size of the deposit, assumed spherical.
April 7, 2010

college
i have free speech.my topic is have ever done anything that you wish you hadn't done?what happened and how the situation might have been different if you had acted or thought differently. really i dont know,how can i speak because i dont know about this.can you help me,can...
June 29, 2009

chem
the answer is not clear
April 23, 2009

university of the south Pacific
Is sodium chloride an Ionic bonding or covalent bonding?
April 6, 2008

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