Most popular questions and responses by aman
  1. stats

    To estimate the mean score  of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about

    asked on November 6, 2013
  2. Chemistry

    The normality of 0.3 M phosphorus acid (H3PO3) is.......

    asked on September 7, 2013
  3. Physics

    A placekicker kicks a football at an angle of 60°. At what angle will the football hit the ground.

    asked on December 20, 2012
  4. math

    A normal clock loses 3 minutes per hr and another clock gains 5 min per hr. How many hours after from now, both the clocks will show the correct time simultaneously?

    asked on January 7, 2016
  5. Math: Geometric Progression

    Three numbers are in G.P. whose sum is 70. if the extremes be each multiplied by 4 and the means by 5, they will be in AP. find the numbers .

    asked on September 13, 2015
  6. Chemistry stoch1

    Calculate mass of iron, which will be converted into (Fe3O4) by the action of 18g of steam on it.

    asked on September 21, 2013
  7. science

    a train is moving along a horizontal track. A pendulum suspended from the roof makes an angle 4 degree with the vertical. obtain the acceleration of train?

    asked on July 5, 2015
  8. physics


    asked on August 2, 2011
  9. Chemistry stochimetry2

    The volume strength of 1.5 N H2O2 is.......

    asked on September 7, 2013
  10. physics

    In thrill machine rides at amusement parks ,there can be an acceleration of 3g or more .But without head rests ,acceleration like this would not be safe.think why not?

    asked on June 17, 2008
  11. Physics

    Two blocks of mass 3kg and 2 kg are jointed with a massless and inextensible string. If breaking tension of string is 10N find the maximum horizontal force with two blocks can be pulled on the surface.

    asked on August 10, 2013
  12. Maths

    In triangle ABC if angle A-B =42degree and angle B-C =21degree .Find the measures of angles A,B and C

    asked on July 21, 2019
  13. Math

    Consider the graph given above. Add an edge so the resulting graph has an Euler trail (without repeating an existing edge). Now give an Euler trail through the graph with this new edge by listing the vertices in the order visited.

    asked on April 16, 2019
  14. Physics

    1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the negative y-axis.Use

    asked on November 19, 2009
  15. maths

    BM and CN are perpendicular to a line passing through the vertex A of a triangle ABC. IF L is the mid point of BC. PROVE THAT,LM=LN

    asked on December 11, 2017
  16. math

    A bacteria culture starts with 260 bacteria and grows at a rate proportional to its size. After 4 hours there will be 1040 bacteria. (a) Express the population after t hours as a function of t. this is what i put as my answer but i guess its not right do i

    asked on November 8, 2009
  17. chemistry

    what mass of carbon, in grams, can be consumed by 44 g oxygen in in combustion to give carbon monoxide/ what mass of CO is produced?

    asked on March 19, 2015
  18. Chemistry

    Calculate the molarity of 1 lit solution of 93% H2SO4 by weight by volume even the density of solution is 1.84 g/ml

    asked on August 10, 2013
  19. physics

    what is the effect on the speed of a fighter plane chasing another when it opens fire?what happens to the speed of pursuid plan when it returns the fire?

    asked on June 18, 2008
  20. math

    If a room were 2m longer and 3m broader its area would have increased by 16 sq m. if its were 1 metre shorter and 2m broader . the area would have increased by 16 sq m. find its lenght and breadth ?

    asked on June 2, 2016
  21. physics

    An atom is normally electrically neutral .Why then should an alpha particle be deflected by the atom under any circumstances?

    asked on June 18, 2008
  22. Science

    Two balls of equal masses roll with velocities v and 4v,respectively .What is the ratio of their Kinetic Energies?

    asked on August 16, 2018
  23. Chemistry

    An aqueous solution is 1.33 molality in method determine the amount fraction of methenal and water

    asked on August 10, 2013
  24. physics

    which will be more effective in knocking a bear down (a)A RUBER BULLET OR (b)a lead bullet of the same momentum.

    asked on June 18, 2008
  25. real no

    Prime factors of 23150 . It is unique

    asked on September 15, 2014
  26. Geometry

    D is the mid-point of side AB of the triangle ABC, E is mid-point of CD and F is mid-point of AE. Prove that: Area (triangle AFD) =Area (triangle ABC).

    asked on January 18, 2011
  27. Chemistry

    The molarity of amonia in aqueous solution is 11.8 mole/dmc calculate the amount of fraction of amonia in solution density of solution is 0.916 g/cc

    asked on August 10, 2013
  28. Commerse

    What is the difference between private and public sector bank

    asked on February 3, 2011
  29. math

    Find the weight of led pipe is 3.5 m long if the external diameter of pipe is 2.4 cm and the thickness of led is 2mm and 1cm cube of the leg width is 4g

    asked on January 15, 2017
  30. Chemistry, stochiometry2

    The no. Of moles of KMnO4 that will be needed to react with one mole of sulphite ion in acidic solution is.......

    asked on September 5, 2013
  31. Chem Urgent

    Volume of stock solution a. 5.0mL b.10.0mL c.15.0mL d.20.0mL Prepare 25mL of each of the four different dilute solution Concentration of stock- 1.01E-5 Calculate molarity for a,b,c,d Molarity=m1V1/V2 for a would the answer be 2.02E6?????

    asked on November 16, 2007
  32. geometry

    construct a triangle ABC where AB=8.5 and BC=6.2.

    asked on November 6, 2014
  33. arithmetic

    if tanx+cotx=2 then the value of tan^5x + cot^10x is

    asked on June 13, 2012
  34. Math

    Responding back as requested: This is all I was provided Solve the folowing system of linear inequalities by graphing. x + 2y is less than or equal to 3 2x - 3y is less than or equal to 6 I would change the inequality into slope intercept form and treat it

    asked on May 26, 2007
  35. physics

    boy weighting 30 kg is riding a bicycle weighting 50 kilograms if the bycycle is moving at a speed of 90 kilometres per hour towards the west find the linear momentum of the bycycle boy system in s i units

    asked on August 24, 2014
  36. math

    If f(x)=5cos(2ln(x)), find f'(x). My answer is (-5sinx)(2lnx)+(5cosx)(1/x) I just did the product rule can you verify if this is correct please!

    asked on October 29, 2009
  37. maths

    Prove that, H^2=P^2+B^2

    asked on December 11, 2017
  38. Physics

    A car is running at a speed of 100km/h if brake is applied how much ditance will it cover before stopping from point where brake is applied ? How

    asked on June 11, 2016
  39. science

    Whar are two longest wavelength in frequency 1kghz and 200kghz

    asked on August 8, 2015
  40. Science

    Name the two forms of oxygen element found in atmosphere. Which one among them grievuing depleted?state and explain the reason?

    asked on March 16, 2013
  41. english

    Similarities between The Storm by Mcknight & Once upon a time by Nadine Gordimer?

    asked on October 31, 2012
  42. algebra

    Find the angles between the following pairs of vectors (1)3i+2j-6k,4i-3j+k (2)2i-3j+k,3i-j-2k

    asked on November 19, 2011
  43. Algebra

    (a+b)whole square = ?

    asked on June 11, 2016
  44. algebra

    find the pair of parallel lines 1)-12y+15x=4 2)4y=-5x-4 3)15x=12y=-4

    asked on May 21, 2013
  45. English 12

    David Suzuki uses examples that include his daughters. Why do you think he does this? Support your answer by incorporating a quotation into your response.

    asked on October 3, 2012
  46. Math

    I have been asked to solve the following system of linear inequalities by graphing. I tried replacing with various numbers but even though the they work in the equations my graphs change from consistent to inconsistent. Please help.

    asked on May 26, 2007
  47. Maths

    Diameter and length of a roller are 84 cm and 120 CM respectively in how many revolutions can the roller level the playground of area 1584 m square

    asked on July 1, 2017
  48. Algebra

    Find the a-b if a =3 and b =5

    asked on September 13, 2013
  49. Physics

    What would happen when a dipole is placed in uniform electric field making an angle theta with the direction of electric field ?

    asked on June 8, 2013
  50. algebra

    which of the following lines is not parallel y=2x=1 1)4x-2y=-4 2)2y-x=-4 3)y-2x=6 4)2x-y=-4

    asked on May 21, 2013
  51. statistics

    from a normally distributed infinite number of iron bars lengths with a mean and standard deviation as 4 ft. and 0.6 ft. respectively, a sample of 100 bars is taken. if the sample mean is 4.2 ft., can the sample be called a truely random sample?

    asked on April 22, 2013
  52. equation inequality and graph


    asked on January 29, 2013
  53. algebra

    Find the angles between the following pairs of vectors (1)3i+2j-6k,4i-3j+k (2)2i-3j+k,3i-j-2k

    asked on November 19, 2011
  54. physics

    Why does cross sectional area of a liquid stream reduces while falling vertically??

    asked on February 8, 2011

    An electric dipole has its dipole moment paligned with a uniform external electric field E(a)Is the equalibrium stable or unstable ?(b)Discuss the nature of the equilibrium if Pand E point in opposite directions?

    asked on June 18, 2008
  56. physics

    If an electron is localized in space ,its momentum becoms uncertain.If it is localized in time ,its energy becomes uncertain.explain this statement.

    asked on June 18, 2008
  57. uni physics

    A balloon of radius 30.0 cm is sprayed with a metallic coating so that the surface is conducting. A charge of 8.85×10−8 C is placed on the surface. What is the potential on the balloon's surface? 2.65×10^3 V Suppose that the some air is let out of the

    asked on September 25, 2013
  58. Algebra


    asked on September 18, 2013
  59. Math

    d/e for d = -6 and e= 3

    asked on September 17, 2013
  60. Chemistry

    The maximum molecular mass ............ Atoms.

    asked on August 12, 2013
  61. History

    what are the related phases of revolutionary development until 1781 For the American Revolution and 1795 for the French Revolution?

    asked on March 13, 2012
  62. physics

    what is reason for saturation current in reversed biased diodes

    asked on November 21, 2008
  63. maths

    5 m : 140 cm = ???????? ratio and proportion 5 m is 500cm. Does that help?

    asked on March 16, 2007
  64. maths

    G is the centroid of triangle ABC, prove that AB^2+BC^2+CA^2=3(AG^2+BG^2+CG^2)

    asked on December 11, 2017
  65. science

    interpret the number of moles of oxygen atoms in po3- 4

    asked on March 19, 2016
  66. Math


    asked on September 12, 2013
  67. Math


    asked on September 11, 2013
  68. Math


    asked on September 11, 2013
  69. math

    which of the following lines is not parallel to y=2x+1 1)4x-2y=-4 2)2y-x=4 3)y-2x=6 4)2x-y=4

    asked on May 21, 2013
  70. math

    find the pair own parallel lines 1)-12y+15x=-4 2)4y=-5x-4 3)15+12y=-4

    asked on May 21, 2013
  71. math

    which of the following equations has a graph that is parallel to the graph of 4x-2y=7? 1)4x+2y=2 2)-2y=4x+2 3)7-4x=2y 4)2y=4x+7 5)-4x-2y=-7

    asked on May 21, 2013
  72. English

    A paragraph described your experiences regarding the arrival of new year

    asked on December 24, 2011
  73. science

    what is black hole form?

    asked on August 27, 2011
  74. Chem

    How would I prepare 25mL each of the dilute solutions of 5mL, 10mL and 20mL and is it possible to dilute it too much?

    asked on November 16, 2007
  75. Math

    (a+b)whole square = ?

    asked on June 11, 2016
  76. GNC Sirsa

    6x+y-3z=5. x+3y-2z=5. 2x+y+4z=8

    asked on November 5, 2015
  77. Math

    (A+b) for a=and b=-8

    asked on September 17, 2013
  78. Math


    asked on September 10, 2013
  1. math (combination)


    posted on November 28, 2019
  2. business math


    posted on September 29, 2019
  3. biology

    They are both disease causing

    posted on July 15, 2019
  4. Math

    math question please give the answer in google.

    posted on June 15, 2019
  5. language


    posted on March 7, 2019
  6. language


    posted on March 7, 2019
  7. university of ghana


    posted on December 29, 2018
  8. Physics

    its wrong

    posted on November 19, 2018
  9. chemistry

    how can find mass in gram

    posted on November 8, 2018
  10. Pre Cal 12

    hi, how did you go from 36=x(12-2x)(8-2x) to 9=x(6-x)(4-x)?

    posted on September 24, 2018
  11. English

    you tell me

    posted on July 26, 2018
  12. maths


    posted on April 5, 2018
  13. maths


    posted on December 27, 2017
  14. math


    posted on November 25, 2017
  15. trig


    posted on November 15, 2017
  16. finance


    posted on October 19, 2017
  17. math

    i dont know i have the same ques\tion

    posted on October 16, 2017
  18. math


    posted on September 10, 2017
  19. Geometry

    d is the mid point so according to theorm 8.9 we can solve it

    posted on November 2, 2016
  20. physics


    posted on October 4, 2016
  21. Geometry


    posted on June 24, 2016
  22. Maths


    posted on June 11, 2016