sanjay

Most popular questions and responses by sanjay
  1. Chemistry

    Which radioactive sample would contain the greatest remaining mass of the radioactive isotope after 10 years? A. 2.0 grams of 198 Au B. 2.0 grams of 42 K C. 4.0 grams of 32 P D. 4.0 grams of 60 Co By the way the numbers next to the elements are their

    asked on March 3, 2007
  2. maths

    Four bells tolls at an interval of 8,12,15 &18 second a respectively. How many times will they toll together in one hour excluding the one at the start?

    asked on September 18, 2015
  3. science

    Which of the following is true? ( a ) when plant is kept in sunlight ,photosynthesis and cellular respiration occurs. ( b ) when plant is kept in sunlight ,only photosynthesis occurs (c ) when plant is kept in dark place ,photosynthesis &cellular

    asked on January 9, 2015
  4. maths

    Given that root 2 is a zero of the cubic polynomial 6x3+2x2-10x-4root2, find its other two zeroes

    asked on July 5, 2015
  5. Science

    If 5 equal pieces of 25 ohm (omega) is joined in parallel then what is the equivalent resistance of it. Is it 5 or 1.please urgent

    asked on March 17, 2017
  6. calculus

    A particle is moving along the curve below. y = sqrt(x) As the particle passes through the point (4,2), its x-coordinate increases at a rate of 4 cm/s. How fast is the distance from the particle to the origin changing at this instant?

    asked on October 26, 2010
  7. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked on December 8, 2016
  8. math

    The length of Paulo’s lunch break follows a normal distribution with mean μ minutes and standard deviation 5 minutes. On one day in four, on average, his lunch break lasts for more than 52 minutes. Find the value of μ.

    asked on February 13, 2014
  9. math

    12. IF 1/SinA+1/CosA=1/SinB+1/CosB ,PROVE THAT: Cot{(A+B)/2}=TanA.TanB

    asked on March 8, 2018
  10. statics

    A former student of ENG8101 wishes to weigh him/herself but only has access to a scale A with capacity limited to 400 N and a small 80-N spring dynamometer B. With the rig shown, he/she discovers that when he/she exerts a pull on the rope so that B

    asked on April 9, 2016
  11. maths

    If one of the zeroes of the cubic polynomial x3+ax2+bx+c is -1 then the product of the other two zeroes is -------(A) b -a +1 (B) b-a-1 (C) a-b+1 (D) a-b-1

    asked on July 6, 2015
  12. Math

    Point B is 10 KM north of Point A and Point C is 10 Km from B on a bearing of 060 from b. Find the bearing and distance of C from A 

    asked on March 1, 2012
  13. maths

    When 6 boys were admitted and 6 girls left the %of boys increased from 60% to 75% . Find the original no. Of boys and girls in the clasa

    asked on July 5, 2015
  14. PHYSICS

    A mass of 100 gm is attached to the end of a rubber string 49 cm long n hving sn area of cross section 20 sqmm. The string is whirled around, horizontally at a cnstnt speed of 40 rps in a crcl of radius 51 cm. Find the young's modulus of rubber.

    asked on October 6, 2015
  15. science

    A wire of resistance 12 ohm per metre is bent to form a complete circle of radius 10 c.m.the resistance between its two diametrically opposite point A and B

    asked on December 26, 2014
  16. Maths

    Cos^4(θ)/cos^2(α) + sin^4(θ)/ sin^2(α)=1 Prove that cos^4 alpha/cos^ thetha + sin^4alpha/ sin^2thetha= 1

    asked on July 5, 2017
  17. physics

    3 charges are placed in a equilateralABC of side l.a point is kept between the sideBc such that the chargeA remains.find the magnitude and sign of the point charge

    asked on March 8, 2017
  18. Chemistry

    What will happen if an iron spoon is used to stir an AgCl solution?

    asked on September 18, 2018
  19. Maths

    In a cricket, a bowler throws a ball at the height 5m. A ball bounces on the pitch at 8m away. A wicket keeper catches this ball from 5m away at the height of 8m. How much distance the ball has covered after pitch. Please show the method.

    asked on March 23, 2017
  20. Chemistry

    Will there be a reaction if a magnesium strip is placed in a solution containing Zn2+ ions?

    asked on September 18, 2018
  21. maths

    A wire from a square of area 324 cm2. If A wire from a semicircle then area becomes ------

    asked on March 7, 2017
  22. maths

    For which values of a and b , are the zeroes of q(x)=x3+ 2x2+a also the zeroes of the polynomial p (x)= x5 -x4-4x3+3x2+3x+b? Which zeroes of p (x) are not the zeroes of q (x)?

    asked on July 5, 2015
  23. science

    The focal length of a concave mirror, that produces four times larger real image of an object placed at 5 cm distance from the mirror, is------

    asked on July 18, 2015
  24. physics

    A horizontal, straight wire carrying 12 A current from east to west is in the earth's magnetic field B. At this place, B is parallel to the surface of the earth, points north and its magnitude is 0.04mT. Determine the Magnetic Force on 1 m length of wire.

    asked on March 23, 2016
  25. maths

    If the circumference of a base of a hemisphere is 2 pie then it's volume is ---' cm3

    asked on March 12, 2016
  26. science

    The focal length of a concave mirror, that produces four times larger real image of an object placed at 5 cm distance from the mirror, is------

    asked on July 19, 2015
  27. maths

    Given that^2 is a zero of the cubic polynomial 6x3+2x2-10x-4^2, find its other two zeroes

    asked on July 5, 2015
  28. maths

    A series of steps lead to a temple.The number of step is 30. The height of each step is 20 cm.Then find the height of the temple from the base.

    asked on March 16, 2015
  29. maths

    In a cricket, a bowler throws a ball at the height 5m. A ball bounces on the pitch at 8m away. A wicket keeper catches this ball from 5m away at the height of 8m. How much distance the ball has covered after pitch

    asked on February 3, 2017
  30. maths

    The cost of 100 fruits is rupees 500. Cost of 1 watermelon ,1 guava,1 banana respectively rupees 50,10 and 1 find the no.of fruit of each type

    asked on September 16, 2015
  31. maths

    If sphere is divided in to four equal parts then find the total surface area of one part of sphere.

    asked on December 26, 2014
  32. Maths

    If a cone of radius r and slant height 2r is surmounted on a cone having radius 2r and slant height 4r then find total surface area of solid

    asked on December 8, 2017
  33. Maths

    if a spherical medicine with radius r is broken down in to 1000 spherical small tablets then the css of original spherical medicine will become---- times

    asked on November 22, 2017
  34. Maths

    The diameter and length of a roller are 84cm and 120 cm respectively in how many revolution can the roller level the playground of area 1584 Sq meter

    asked on August 28, 2017
  35. Maths

    9^x+2 - 6* 3^x+1= 0 find x Answer earlier I got confused

    asked on August 11, 2017
  36. maths

    In the green rectangular board of measure 20×15 ,there is a white square with side 10 units. In the square, there is a orange right angle triangle of measure 3×4×5 . Find the probability that a dart strikes in orange portion

    asked on January 2, 2017
  37. maths

    Mr. Ahmed age is 47 yes and sani's age is 15 years .In how many years will Ahmed 's age be double of Sani's age?

    asked on March 3, 2016
  38. chemistry

    Treatment with sodium borohydride converts aldosterone A in to an optically inactive alditol. Ruff degradation of A from B, whose alditol is optically inactive. Ruff degradation of B from D - glycerol dehydration. Identify A and B

    asked on July 7, 2015
  39. maths

    Angle AOP is an acute angle .circle (O, OP ) is passing from A. Line l touches at A. No is perpendicular on line l from P. If AN =15 PN =9 then radius=-----

    asked on March 7, 2017
  40. maths

    Find the two natural no in the ratio of 5:7 such that it's lam is 210 with method

    asked on November 23, 2016
  41. Math

    Rushil and Timmy shared a sum of money in the ratio 3:4. If Timmy received R 6 more than Rushil, find the total sum of money shared between them.

    asked on August 20, 2016
  42. maths

    If one of the zeroes of cubic polynomial x3 + ax2 + bx + c is - 1 then the product of the other two zeroes is -----

    asked on December 21, 2015
  43. Gr.12 Chemistry

    What will happen if an iron spoon is used to stir an AgCl solution?

    asked on September 18, 2018
  44. Maths

    Please show the method of showing root 42 on number line.

    asked on August 16, 2017
  45. maths

    If six cubes of 10 cm edge are joined edged to edge then the surface area of the resulting cuboid is ------please show method

    asked on January 3, 2017
  46. maths

    The probability of card being an ace of heart in a pack of 52 card is----

    asked on October 5, 2015
  47. science

    In which of the following statement the word light year is used correctly? (A) Ceres dwarf galaxy is 2.46 million lightyear away from us.(B) light travels with the speed of 1 lightyear in the universe (c) the next complete solar eclipse will be seen after

    asked on March 16, 2015
  48. maths

    If lemon is divided into four equal parts then find the total surface area of one part of lemon

    asked on December 25, 2014
  49. chemistry

    how many liters of carbon dioxide produce when 6kg sodiumcarbonate react with excess hcl at 37 c

    asked on December 11, 2011
  50. Maths

    If the sum of circumferences of two circles wirh radii r1 & r2 is equal to the circumference of a circle of radius r, then what is true 1 r1+ r2 = r or sum of their squares= r2

    asked on December 26, 2017
  51. Maths

    (a^2 - b^2) sin theta+ 2abcos thetha= a^2 + b^2 then find tan theta

    asked on July 10, 2017
  52. Maths

    Cos4theta/cos2alpha + sin4theta/ sin2alpha=1 prove that

    asked on July 4, 2017
  53. maths

    If mewi=xi-25/10 and sigma fiui=20 and sigma fi=25 what is the mean?

    asked on September 23, 2016
  54. Math

    66:36::18:?

    asked on March 26, 2016
  55. maths

    If radius and height are equal for a cylinder,cone and hemispere are same,the ratio of their volume will be------

    asked on December 21, 2015
  56. maths

    In  TRIANGLE ABC points P,Q,R arethe points lies inside triangle in such a way that Ap= PR, BQ=QP &QR=RC n area of triangle PQR =100 then find the Area of ABC

    asked on November 13, 2015
  57. maths

    Given that√2 is the root of cubic polynomial 6x3 + 2x2-10x -4√2 find the other two roots

    asked on July 5, 2015
  58. biology

    Through which are the chromosomes, transmitted according to the path of transmission of factors from the parental generation to offspring's as indicated by Mendle?option are as follows (1) hereditary chapters (2) evolution (3) heredity (4) gametes

    asked on February 11, 2015
  59. science

    Through which are the chromosomes, transmitted according to the path of transmission of factors from the parental generation to offspring's as indicated by Mendle? (1) hereditary chapters (2) evolution (3) heredity (4) gametes

    asked on February 11, 2015
  60. science

    Through which are the chromosomes, transmitted according to the path of transmission of factors from the parental generation to offspring's as indicated by Mendle? (1) hereditary chapters (2) evolution (3) heredity (4) gametes

    asked on February 11, 2015
  61. maths

    Radius of a circle inscribed in a regular hexagon is 24 c.m. then find the length of hexagon

    asked on January 24, 2015
  62. maths

    If (k,1) , (0,d) , (1,1) are collinear then find 1/k + 1/d =---

    asked on January 23, 2015
  63. math

    Fill up the grid with the help of clues given below-

    asked on June 2, 2014
  64. physics

    if a boy runs along a circular field of 200m diameter in 40 seconds. How much distance will he cover in 2 minutes and 20 seconds and what shall be his displacement

    asked on April 25, 2012
  65. science

    what is the science?

    asked on May 7, 2008
  66. Algebra 2

    Let f(x) = 3x^2 – x + 2 and g(x) = 5x^2 – 1. Find f(g(x)). Show each step of your work. I got 75x^4 -35x +6 If that is wrong can you correct me. Thank you!

    asked on April 8, 2017
  67. Maths

    The party of kejriwal walks from gwalior to Bhuvneshwar. They first walk straight for 150km and then turn 45 ddegree towards Varansi and again go straight for 120km how for have they travelled from the initial place. Please show the method.

    asked on March 23, 2017
  68. Maths

    10 marks add to each of the 12th standard students marks due to poor result which of the following measure does not change? (A)mean (b) median (c) mode(d) standard deviation

    asked on March 19, 2017
  69. Maths

    At present what you are answering my question ,what is the probability of getting 1 out of 1 marks

    asked on March 18, 2017
  70. Science

    Which tunable property is the great thrust in biological and medical sciences? A) physical B) chemical C) biological D) none

    asked on March 11, 2017
  71. maths

    The measure of the side of an equilateral triangle is 6cm. Then area of circle touching all three sides of given triangle is ------cm2 (a) pie (b) 3 pie (c) 12 pie (d) 36pie

    asked on February 25, 2017
  72. maths

    Angle of elevation of sun from earth is called? (A) sunset (b) sun's altitude (c) sunrise (d) none

    asked on February 25, 2017
  73. maths

    Find two natural numbers in ratio 5:7 such that their l.c.m.is 120

    asked on February 22, 2017
  74. maths

    Find two natural numbers in ratio 5:7 such that their lives. L C.m. is 210

    asked on February 3, 2017
  75. chemistry

    In equation He +Br2------>2HI why chemical rate of Br2 is taken as 1/2 . It's a reversible reaction. Please explain in detail. While H2 rate is taken as 1 why?

    asked on December 24, 2016
  76. maths

    If the graph of f (x)=ax2+bx+c then how do we know the value of b from the graph. We will come to know the value of a & c by the shape of the graph like open upward or downward but what about 'b' explain

    asked on December 21, 2016
  77. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked on December 6, 2016
  78. maths

    Find all possible pairs of two natural numbers whose sum is 77 and their g.c.d. is 7

    asked on December 6, 2016
  79. maths

    If 6 cubes of 10 cm edge are joined edged to edge then the surface area of the resulting cuboid is ----

    asked on February 24, 2016
  80. science

    Two wires if the same metal and of the same dia. And same length are connected in series 1st n then parallel, the ratio of energy produced during series n parallel connection will be .....  A. 1:2  B. 2:1  C. 1:4  D. 4:1

    asked on February 11, 2016
  81. maths

    In triangle PQR QM perpendicular to PR, RN perpendicular to PQR, H is ortocentre of triangle PQR then PNHM is -----

    asked on February 6, 2016
  82. maths

    In triangle PQR QM perpendicular to PR, RN perpendicular to PQR, H is ortocentre of triangle PQR then PNHM is -----

    asked on February 4, 2016
  83. science

    Resistivity dependent on length and area or not

    asked on December 16, 2015
  84. science

    Rheostat varies what 1. Current 2. Resistance 3 . voltage

    asked on December 16, 2015
  85. maths

    60 students appear for examination. Out of which 1/15 th were failed and total percent of students who got more than 90% were 0.125% .then if 1 student randomly choose find the probability of getting that students to be passed

    asked on December 10, 2015
  86. maths

    In TRIANGLE ABC points P,Q,R arethe points lies inside triangle in such a way that Ap= PR, BQ=QP &QR=RC n area of triangle PQR =100 then find the Area of ABC

    asked on November 11, 2015
  87. sanket study centre

    In triangle ABC p,q,r such that they lie interior of triang ABC and AP=AR and all the three sides of triangle PQR are scalan if area of triangle PQR is 100 then find area of triangle ABC

    asked on November 11, 2015
  88. science

    In which part of the alimentary canal digestion of starch began?

    asked on October 25, 2015
  89. science

    What is not present in animal cell if nucleus is absent

    asked on September 17, 2015
  90. maths

    Arrange 10 people in 5 rows in such a manner that there are 4 people in each row

    asked on September 16, 2015
  91. chemistry

    Treatment with sodium borohydride converts aldosterone A in to an optically inactive alditol. Ruff degradation of A from B, whose alditol is optically inactive. Ruff degradation of B from D - glycerol dehydration. Identify A and B. Please help urgently.

    asked on July 8, 2015
  92. chemistry

    Treatment with sodium borohydride converts aldosterone A in to an optically inactive alditol. Ruff degradation of A from B, whose alditol is optically inactive. Ruff degradation of B from D - glycerol dehydration. Identify A and B.please give satisfactory

    asked on July 7, 2015
  93. maths

    The number of polynomial having zeroes as -2 and 5 is --------(A) 1 (B)2 (C) 3 (D) more than 3

    asked on July 6, 2015
  94. science

    How many sex chromosomes are found in the reproductive cells of human being?

    asked on March 13, 2015
  95. maths

    Radius of a circle inscribed in a regular hexagon is 24 c.m. then find the length of the side of hexagon

    asked on January 24, 2015
  96. science

    An inverted image of a candle is formed when kept in front of a convex mirror .If half lens is covered by an op equestrian material than how will the image be?

    asked on January 9, 2015
  97. science

    A 2 kw&22 heater works on domestic voltage main supply. What should be the current rating of fuse explain

    asked on December 26, 2014
  98. trig

    How much does it cost to paint a triangular surface of sides 6m,5m, and 11m at the rate of rs.20/-per metre square.

    asked on December 3, 2014
  99. Science

    Express mass of the Earth in unit of M. Take ME = 6 x 1024kg.

    asked on December 2, 2012
  100. Science

    Express mass of the Earth in unit of M. Take ME = 6 x 1024kg. The apparent magnitude of the sun is £¡ 26.81 and that of another star is£¡1.81. How much brighter the sun is with respect to that star ?

    asked on December 2, 2012

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