Popular questions and responses by Rahul
  1. chemistry

    identify the type of reaction:- FeSO4 + heat ----------> Fe2O3 + SO2 + SO3

    asked on May 26, 2014
  2. Science

    Find out the amount of heat required to convert 1 gm of ice at -30 ⁰C to 1 gm of steam at 120 ⁰C. Given the specific heat of ice is 2090 J/kg/⁰C, specific heat of water 4180 J/kg/⁰C, specific heat of steam is 2010 J/kg/⁰C, latent heat of ice to

    asked on June 3, 2020
  3. English

    Write the characteristics of lencho.

    asked on June 21, 2017
  4. Geometric progression

    The first term of a G.P. Is 5 and the common ratio is-2. What is the 6th term?

    asked on October 13, 2016
  5. Chemistry

    what is the OH- concentration of 0.08 M solution of CH3COONa

    asked on May 4, 2017
  6. trig


    asked on February 24, 2013
  7. math

    12x + 16y=1/5 & 13x + 24y =1/4,find value of x & y.

    asked on April 7, 2013
  8. science

    all acids are not corrosive.justify this statement

    asked on July 18, 2016
  9. Science

    A boy travels a distance of 10 m towards south and then he runs towards east and travels 12 m in that direction. Calculate (i) the total distance travelled by the boy and (ii) the displacement from his initial position

    asked on May 5, 2018
  10. chemistry

    calculate the freezing point of an aqueous solution containing 10.50 g of MgBr2 in 200 g of water (MgBr2=184 g, Kf for water =1.80 K kg mol-1)

    asked on June 12, 2013
  11. MAnagerial Economics

    In the long Run Who play a dominant role. Options:- Income, Demand, Supply, Price.

    asked on April 23, 2013
  12. Geometric progression

    First term and the sum of an infinite G.P. are 2 and 3 respectively. find the common ratio and sum upto n term.

    asked on October 13, 2016
  13. mathematics

    Find the angle of depression of a boat from the bridge at a horizontal distance of 25 m from the bridge if the height of the bridge is 25 m

    asked on March 20, 2016
  14. Physics

    The speed of the tip of a second hand of length 5 cm of a clock is m/s

    asked on January 20, 2018
  15. Geometric progression

    Express 0.54 as a rational number. sir this question answer is 6/11

    asked on October 13, 2016
  16. math

    A box of constant volume c is to be twice long as it is wide . the material on the top and four sides cost three times as much per square metre as that in the bottom. what are most economic dimensions ?

    asked on August 30, 2017
  17. Math

    Sin square 5 degree plus Sin square 10 degree plus Sin square 15 degree plus..........Sin square 90 degree

    asked on August 4, 2014
  18. mathematics

    The members of a high school basketball team are driving from calgary to vancouver,which is a distance of 675km.Each tire of their van has a radius of 32cm.If the team members drive at constant speed and cover the distance in 6h 45 min,what is the angular

    asked on November 12, 2013
  19. Geometric progression

    The sum of n terms of a series is a.2n-b, find its nth term. are the terms of this series in G.P. ?

    asked on October 13, 2016
  20. Science

    500g of water at 100°c is mixed with 300g of water at 20°c.specific heat capacity of water is 4.2Jg°c.find the final temperature of mixture. (Physics)

    asked on September 5, 2016
  21. AP Chemistry

    What volume of each of the following bases will react completely with 21.00 mL of 0.500 M HCl? (a) 0.100 M NaOH (b) 0.0500 M Ba(OH)2 (c) 0.250 M KOH

    asked on September 24, 2011
  22. chemistry

    When water is cooled to a temperature x , it gets converted into ice at temperature x by a process called p. And when ice at temperature x is warmed, it gets converted into water at the same temperature x in a process called Q a) what is the value of

    asked on June 11, 2011
  23. math

    In how many years will RS 150 double itself at 4 persent simple interest?

    asked on December 1, 2017
  24. Math

    A rectangular strip 25cm*7cm is rotated about the longer side. find the total surface area of the solid thus generated.

    asked on December 14, 2016
  25. Geometric progression

    The sum of an infinite g.p. whose common ratio is numerically less the 1 is 32 and sum of the first two is 24.

    asked on October 13, 2016
  26. Physics

    The near point of a patient's eye is 58.2 cm. (a) What should be the refractive power ℛ of a corrective lens prescribed to enable the patient to clearly see an object at 22.0 cm? ℛ = dpt (b) When using the new corrective glasses, the patient can see an

    asked on March 4, 2016
  27. physics numeral

    A person rows his boat in stream with a speed of 2.0 m/s.Water in the stream is flowing perpendicular to the direction of flow,find graphically his resultant velocity.

    asked on June 7, 2013
  28. AP Chemistry

    Write the balanced molecular, complete ionic, and net ionic equations for the reactions that occur when the following are mixed. (Type your answer using the format [NH4]+ for NH4+ and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients.) (a)

    asked on September 24, 2011
  29. chemistry

    how many moles of methane are required to produce 22g of CO2 after combustion

    asked on July 24, 2011
  30. math

    a ball is dropped from a height of 5m assuming that on each bounce the ball return to 60percent of its height attained

    asked on June 18, 2019
  31. Math

    a swimming pool is 40m long 25m wide 6m deep find a cost of cementing of its floor and walls at the rates of ₹135 square per meter

    asked on February 1, 2017
  32. math

    In an election there were 2 candidates the winner poled 53% votes and won by 9600 votes find total number of votes

    asked on January 7, 2017
  33. Geometric progression

    If the fifth term of a G.P. Is 81 and second term is 24, find the g.p. Sir this question answer 16,24,36,54 please help

    asked on October 14, 2016
  34. chemistry

    Henry's law constant for N2 and O2 is 1.6 *10^-6and 8.77*10^-7 molal/mm Hg at 298k.Air has 78 mole percentage N2 and 21 mole percentage O2.at atmospheric pressure the ratio of solubility of N2 and O2 in water is?

    asked on May 10, 2016
  35. dps dhanbad


    asked on November 30, 2015
  36. physics

    car moving on a straight road covers a distance of 1.5 km due east in 150 second.what is the speed of the car?what is it's velocity?

    asked on June 1, 2015
  37. Theory of machines

    A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine

    asked on January 18, 2015
  38. physics

    Two identical small marbles A and B can be seen. A is at rest while B moves towards A at uniform velocity. The track is smooth towards left of P while it offers a resistance of 0.1 m/s2 towards its right. After some time, the marbles are seen at rest 25cms

    asked on September 20, 2014
  39. algebra

    Monika had 5 boxes of chocolates with her. If each box contains 25 chocolates. find the total chocolates she had.

    asked on June 22, 2014
  40. physics

    A spacecraft circling the moon at a distance of 384,000 km from the earth communicates by radio with a person on earth. How much time elapses between the sending and receiving of a signal?

    asked on April 2, 2012
  41. AP Chemistry

    What mass of Na2CrO4 is required to precipitate all the silver ions from 96.0 mL of a 0.650 M solution of AgNO3?

    asked on September 24, 2011
  42. AP Chemistry

    Write the balanced molecular, complete ionic, and net ionic equations for each of the following acid-base reactions. (Type your answer using the format [NH4]+ for NH4+ and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients.) (a) HClO4(aq) +

    asked on September 24, 2011
  43. Physics

    A light string, connects blocks 1 and 2 of masses m1 and m2. These blocks are further connected to a block of mass M by another light string that passes over a pulley of negligible mass and friction. Blocks 1 and 2 move with a constant velocity v down the

    asked on December 9, 2010
  44. Maths

    Evaluating [20] gives [17] a)1140 b)1141 c)1131 d)1130

    asked on June 9, 2019
  45. Science

    What happens when you bleach the fur of a German Shepherd?

    asked on May 18, 2019
  46. math

    Five square flower beds each of sides 1m are dug on a piece of land 5m long 4m wide . What is the area of remaining part of land?

    asked on January 23, 2019
  47. Math

    What is i?

    asked on December 28, 2018
  48. Geography

    What happens when we move vertically upwards from the Earth ?

    asked on August 10, 2018
  49. Maths

    If the area of rhombus is 240sq m and perineter is 68m find the length of diagonal.

    asked on June 8, 2018
  50. Math Calculus

    A cylindrical tank with axis horizontal has a diameter d and a length L. It holds oil to depth d ( d

    asked on April 17, 2018
  51. Tourism

    A person personality stay the same throughout life

    asked on March 29, 2018
  52. physics

    Three point sized bodies each of mass M are fixed at three corners of light triangular frame . In the above problem about an axis perpendicular to the plane of frame and passing through a corner of frame the moment of inertia of three bodiea is ??

    asked on September 6, 2017
  53. Maths

    Express 14 upon root six ➖ root 5 ➖ root eleven with rational denominator

    asked on June 13, 2017
  54. Maths

    What is corresponding parts of a congruent triangle

    asked on June 3, 2017
  55. math

    ice in a refrigerator melts at rate of 3 kg per hour. the temperature outside is 27°c. find the minimum power output of a motor used to drive the refrigerator,which just prevents ice from melting. latent heat of ice = 80 cal/g,J=4.2 joule/cal, 1 h.p = 746

    asked on March 29, 2017
  56. Physics

    Find the distance of the image when an object is placed on the principal axis at a distance of 10 cm. In front of concave mirror whose radius of curvature is 8 cm

    asked on March 24, 2017
  57. Science

    A craane lifts an 8000N height 75m to the top of a buildings in 30s. How much power does the crane use?

    asked on January 4, 2017
  58. dp

    What is the pressure due to a man weighing 80 kg standing on his feet? Area of his feet 160 Sq. Cm

    asked on November 27, 2016
  59. Accountany

    What is legacy

    asked on October 13, 2016
  60. Math


    asked on October 13, 2016
  61. Geometric progression

    If the continued product of three numbers in G.P. is 216 and the sum of their products in pair is 156. Find the numbers.

    asked on October 13, 2016
  62. Geometric progression

    Three numbers whose sum is 15 are in A.P. If 1,4,19 be added to them respectively the resulting number are in G.P find

    asked on October 13, 2016
  63. Geometric progression

    Fourth term of a G.P. is 40 and the tenth term is 2560. find the seventh term.

    asked on October 13, 2016
  64. Geometric progression

    If 5th and 8th terms of a G.P. be 48 and 384 respectively. find the G.P.

    asked on October 13, 2016
  65. Geometric progression

    Fin the sum of the series 1+2+4+8+....to 12 terms.

    asked on October 13, 2016
  66. Geometric progression

    Find the sum of the series 4+44+444+....to n terms.

    asked on October 13, 2016
  67. Geometric progression

    Find the sum of the series 0.5+0.55+0.555+....to n terms.

    asked on October 13, 2016
  68. Geometric progression

    Find the sum of 8 terms of the G.P. 3,6,12,24,..... .

    asked on October 13, 2016
  69. Geometric progresson

    If a be the first term, b the nth term and p the product of n terms of G.P.,show that p2=(ab)n.

    asked on October 13, 2016
  70. Geometric progression

    Find the nth term and the sum to n terms of the series: 1+(1+2)+(1+2+2>2)+.....

    asked on October 13, 2016
  71. Geometric progression

    Find the sum of the geometric series 1+1/2+1/4+1/8+.....to 12th terms.

    asked on October 13, 2016
  72. Geometric progression

    Find the sum of series: 1+3x+9x2+27x3+...to

    asked on October 13, 2016
  73. Geometric progression

    Find the sum upto infinite: 2/5+3/5>2+2/5>3+3/5>4+2/5>5+3/5>6+.....

    asked on October 13, 2016
  74. Geometric progression

    The first term of an infinite geometric progression is 1 and the sum of the terms is 13, find common ratio.

    asked on October 13, 2016
  75. Geometric progression

    The sum of infinite number of terms of a decreasing G.P is 4 and the sum of the squares of its terms to infinity is 1/3

    asked on October 13, 2016
  76. Geometric progression

    Find the sum to the n terms: 5+55+555+.......

    asked on October 13, 2016
  77. Math

    Express 0.54 as a rational number.

    asked on October 13, 2016
  78. Math

    Show that of all the rectangle inscribed in a given circle,the square has the max area

    asked on July 25, 2016
  79. Average

    In a class 20% students failed 60% students scored average marks and the remaining above average marks find number of students in the class ?

    asked on May 6, 2016
  80. Rt

    if a boy present age is 7 yr & his uncle present age is 31 after how many yr his uncle age was twice of his boy age

    asked on April 30, 2016
  81. Maths

    Find the volume of a cuboid whose base area is 10metercube and height is 6meter

    asked on March 9, 2016
  82. Physics

    A person can see an object in focus only if the object is no farther than 35 cm from the right eye and 58 cm from the left eye. Write a prescription for the refractive powers ℛ (in diopters) for the person's corrective lenses. right eye dpt left eye dpt

    asked on March 4, 2016
  83. Science

    Expression for bernaulli theorem

    asked on February 21, 2016
  84. math

    If P (x, y) is a point on da line segment joining da points A(6,8) & B(-8, 6) prove that x+y=2

    asked on February 18, 2016
  85. Algebra

    is (x^2-a^2) the same as (x-a)^2. If so would (x^2-a^2)/x-a = x-a?

    asked on February 9, 2016
  86. Physics

    find the angle of banking of curved railway track of radius 600m if the maximum saftey sppedd limit is 54;km/hr .if distance beetween the rails is 1.6m find elevation ofvthe outervtrack above the inner track

    asked on January 29, 2016
  87. geometry

    if a circle is divided into 12 parts then what is the measure of each part in terms of radius

    asked on January 9, 2016
  88. dps dhanbad

    subject: math. distance=8m,speed=42/5centi/sec,time=?

    asked on November 30, 2015
  89. KCC

    An electron has a speed of 500 m/Sec with uncertainty of 0.002% what is the uncertainty in position?

    asked on October 14, 2015
  90. physics

    which type of forces does a proton exerts on a proton inside nucleus? my answer-repulsion force

    asked on August 15, 2015
  91. English

    If they or someone nearby had only known the simple rules of water safety. How to make a question of this passage?

    asked on June 6, 2015
  92. math


    asked on May 10, 2015
  93. Physical Chemistry

    The weight of one atom of uranium is 238amu. Its actual weight is ......g.

    asked on April 21, 2015
  94. Physical Chemistry

    The weight of one atom of uranium is 238amu. Its actual weight is ......g.

    asked on April 20, 2015
  95. Mathematics

    A cylindrical tube, open at both ends, is made of metal. The internal diameter of the tube is 10.4cm and its height is 25 cm. If thickness of the metal is 8mm everywhere, calculatd the volume of metal in the cylinder

    asked on January 4, 2015
  96. s.p s

    How we can write 26th December 2014 in five letters

    asked on December 26, 2014
  97. physics

    Define Newton's first law .

    asked on December 7, 2014
  98. physics

    Newton first law provides the measure of ???

    asked on December 7, 2014
  99. math

    find twonumbers such that the sum of twice the first and thric the second is 92 and four times the exceeds seven times the second by 2

    asked on November 27, 2014
  100. Maths

    Show that if the diagonals of a quadrilateral bisect each other at right angles, then it is a rhombus.

    asked on October 28, 2014


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