Most popular questions and responses by Rishabh
  1. chemistry

    molarity of kmno4 and strength of kmno4 in M/25 solution experiment of oxalic acid.......

    asked on January 23, 2013
  2. math

    Prove that:(3-4sin^2A) (1-3tan^2A)=(3-tan^2A)(4cos^2A-3)

    asked on October 13, 2014
  3. geometry

    The sies of a triangle are 9cm, 12 cm and 15cm. Find the lenght of the perpendicular drawn to the side which is 15 cm.

    asked on September 4, 2010
  4. physics

    The furthest distance from the Sun to Earth is df=1.521E8 The shortest distance from the Sun to Earth is ds=1.47E8 To simplify the problem, assume that the Earth's axis is always perpendicular to the plane of its trajectory around the Sun. The Sun always

    asked on June 9, 2013
  5. kishore

    if 1 is added to the numerator and 3 to the denominator of a fraction it becomes 1/2 if 1 is subtracted from the numenator and 2 is added to the denominator it becomes 2/5 find the fractions

    asked on February 21, 2017
  6. physics

    The most convenient way to express vectors in the two dimensional plane is in the familiar (x,y) Cartesian coordinates. However, one can express vectors in other coordinate systems as well. For example, another useful coordinate system for the plane is

    asked on June 10, 2013
  7. math

    tan/1-cot +cot/1-tan =1+sec cosec

    asked on May 2, 2008
  8. physics

    Calculate the momentum of a 100 kg object moving with velocity 10m/s

    asked on July 24, 2016
  9. maths

    We have a list of N consecutive 3-digit numbers, each of which is not divisible by its digit sum. What is the largest possible value of N?

    asked on June 10, 2013
  10. chemistry

    what is the chemical formula of dihydrogen oxide

    asked on June 1, 2008

    The distance between Delhi and Agra is 200 Km. A train travels the first 100 Km at a speed of 5 K/h . How fast must the train travel the next 100 Km , so as to average 70 K/h for the whole journey ?

    asked on April 28, 2018
  12. physics

    Calculate the momentum of a 100 kg object moving with velocity 10m/s

    asked on July 24, 2016
  13. Math

    Montreal's Marathon building is 395 m tall. From a point level with, and 148m from, the base of the building, what is the angle of elevation to the top of the building?

    asked on March 14, 2015
  14. maths

    Will is given 10 rods, whose lengths are all distinct integers. However, he finds that given any 3 rods, he is unable to construct a (non-degenerate) triangle with them. What is the shortest possible length for the longest rod?

    asked on June 10, 2013
  15. maths

    A polynomial f(x) satisfies the equation f(x)+(x+1)3=2f(x+1). Find f(10). that is (x+1) whole cube

    asked on June 10, 2013
  16. maths

    Consider a 25×25 grid of city streets. Let S be the points of intersection of the streets, and let P be the set of paths from the bottom left corner to the top right corner of which consist of only walking to the right and up. A point s is chosen

    asked on June 10, 2013
  17. physics

    Estimate the time difference between the longest amount of daylight in one day and the shortest amount of daylight on one day in seconds over the course of a year if you lived on the Earth's equator

    asked on June 9, 2013

    A positive charged particle placed on a frictionless table by attaching it to a string fixed at one point of magnetic field is switched on in the vertical direction, the tension in the string (A) will increase (B) will decrease (C) will remain same (D) may

    asked on October 8, 2011
  19. Accounts

    The following is the Trial Balance of a trader as at 31st December, 2001: Debit Balances Rs. Credit Balances Rs. Stock (1-1-2001) Sales returns Purchases Freight and carriage Rate, Rent etc. Salaries and wages Sundry debtors Bank Interest Printing and

    asked on October 16, 2010
  1. Speed'Distance'Time

    Rishabh ne glaat ans nahi diya

    posted on September 29, 2016
  2. Math

    No it isn't

    posted on October 14, 2014
  3. maths

    x+1 whole cube but now i got the answer thanks..

    posted on June 10, 2013
  4. maths

    answer is wrong

    posted on June 10, 2013
  5. maths

    can anybody solve it..?

    posted on June 9, 2013