Karan

Most popular questions and responses by Karan
  1. physics

    A toy plane p starts flying from point A along a straight horizontal line 20 m above ground level starting with zero initial velocity and acceleration 2 m /s² as shown. At the same instant, a man P throws a ball vertically upwards with initial velocitu

    asked on July 15, 2014
  2. chemistry

    The equilibrium constant of the reaction CH3COOH (l)+C2H5OH (l)=CH3COOC2H5+H2O is 4.if one mole of each of acetic acid and ethyl alcohol are heated in presence of little concentrated H2SO4 at equilibrium the amount of ester present is?

    asked on July 7, 2014
  3. physics

    For a particle undergoing rectilinear motion with uniform acceleration, the magnitude of displacement is one third the distance covered in some time interval. The magnitude of final velocity is less than magnitude of initial velocity for this time

    asked on August 19, 2014
  4. physics

    A lift starts from the top of a mine shaft and descends with a constant speed of 10 m/s. 4 s later a boy throws a stone vertically upwards from the top of the shaft with a speed of 30 m/s. Find when and where stone hits the lift [take: g=10 m/s²]

    asked on July 17, 2014
  5. chemistry

    The equilibrium constant of the reaction CH3COOH (l)+C2H5OH (l)=CH3COOC2H5+H2O is 4.if one mole of each of acetic acid and ethyl alcohol are heated in presence of little concentrated H2SO4 at equilibrium the amount of ester present is?

    asked on July 7, 2014
  6. physics

    The coefficient of apparent expansion of a liquid when determined using two different vessels A and B are gamma1 and gamma2 respectively. If the coefficient of expansion of the vessel A is alpha, the coefficient of linear expansion os the vessel B is

    asked on April 16, 2015
  7. physics

    A rod of length L = 1.2 m pivots freely about one end. The rod is held horizontally and released, with no intial velocity. Find the angular velocity of the rod as it passes through the vertical orientation. (Use conservation of energy. The rotational

    asked on December 12, 2012
  8. physics

    1.∫ x³(x+1)dx 2.∫ (1-cot²x)dx 3.∫ cosx(tan x + sec x) dx 4.∫ dx/√5x+8 using u= 5x+8 and using u= √5x+5

    asked on June 19, 2014
  9. physics

    An astronaut is on the surface of planet whose air resistance is negligible. To measure the acceleration due to gravity(g) he throws a stone upwards. He observe that the stone reaches the surface to a maximum ht of h =10m(which is negligible is compare

    asked on August 19, 2014
  10. geometry

    find k if one of the lines given by kx^2+10xy+8y^2=0 is perpendicular to 2x-y=5

    asked on March 2, 2013
  11. geometry

    the sides of a quadrilateral abcd are 6cm,8cm,11cm and 12cm respectively,and the angle between the first two sides is a right angle.find its area.

    asked on June 22, 2011
  12. physics

    A train starts from station A at 1pm and reaches station B at 3 pm, aftet travelling 108 km. It halts at station B for one hour and then starts for station c which is 42 km fron station B. It reaches station c at 7pm on the same day. The avg speed fo the

    asked on August 19, 2014
  13. science

    The velocity of sound in air at 27°celcius is 340m/s calculate the velocity of sound in air at 227°celcius ?

    asked on January 21, 2017
  14. physics

    A body starts with an initial velocity of 10m/s and moves along a straight line with a constant acceleration. When the velocity of the particle becomes 50 m/s the acceleration is reversed in direction without changing magnitude. Find the velocity of the

    asked on July 17, 2014
  15. SIMPLE INTEREST

    The rum of money that will produce ₹1770 as simple interest in 15/2 years as 8% at per annum is.

    asked on February 8, 2016
  16. SIMPLE INTEREST

    if ₹250 amounts to ₹285 in 2 years, find the rate percent per annum.

    asked on February 8, 2016
  17. geometry

    the length of the median drawn to the hypotenuse of a right triangle is represented by 3x-7, while the hypotenuse is represented by 5x-4. Find the length of the median.

    asked on January 7, 2012
  18. sciecnce (hypothesis)

    Am doing a experiement with a egg and trying to see if the shell dissolves hypothesis: If the solution is vinegar then the egg shell will dissolve. Is the hypothesis correct

    asked on September 18, 2011
  19. Chemistry

    The equilibrium constant for the reaction 2SO2 + O2 2SO3(all are gases) at a certain const temperature is 846.4mol/dm^3. At equilibrium in a 1dm^3 vessel, 0.5 moles of SO2, 0.1 moles of O2, and 4.6 moles of SO3 were found. How many moles of oxygen must be

    asked on October 29, 2015
  20. Physics

    Research on the physics of living systems.Give two examples to show how physics

    asked on July 15, 2016
  21. maths

    ABC is a triangle BD & CE are altitudes drawn from the vertex B & C. Prove that ABC is an isoceles triangle

    asked on June 19, 2013
  22. Social Studies

    What are the social classes of Poland?

    asked on June 9, 2011
  23. meaning of a word(quick) thanks

    Left unabated, obesity will surpass smoking as the leading cause of preventable death in America What is a another word for surpass

    asked on May 18, 2011
  24. calculus

    How do I integrate tanx (1+sec^4 x)^3/2 dx My daughter is doing surface area problems, and all the examples assume she knows how to finish it off once we get to the integration....

    asked on February 25, 2011
  25. SIMPLE INTEREST

    In how much time would the simple interest on a certain sum be 0.125 times the principle at 10% per annum?

    asked on February 8, 2016
  26. SIMPLE INTEREST

    In what time will ₹1200 amount to ₹1344 at 6% per annum?

    asked on February 8, 2016
  27. English please help!!!!!

    In the book The Pearl By John Steinbeck. The rich and powerful usually dominate the poor and uneducated. In the book who was rich?who did they dominate? Please give me alot of information

    asked on October 4, 2011
  28. confederation college

    1.52 kg box slides 1.24 m a long a level surface.the co-efficient of kinetic friction between book and surface is 0.140.find the work done by friction?

    asked on April 11, 2013
  29. Social Studies please help

    why did many native born americans in the late 1800 were in favor of restricting immigration?

    asked on October 3, 2011
  30. math

    A boy reaches his school 1.4km away in 1hr 40mins at what speed does he travels?

    asked on July 13, 2016
  31. physics

    A particle moves in a straight line with an acceleration a ms^-2 at time 't' seconds where a = - 1/t² when t=1 the particle has a velocity of 3ms^-1 then find the velocity when t=4

    asked on August 19, 2014
  32. maths

    1. Log10²x+log10x²=log10² 2-1 2. Log4(log2x)+log2(log4x)=2 3. X^logx+5/3= 10^5+log x 4. Log 1/2(x-1)+ log 1/2(x+1)-log1/√2(7-x)=1

    asked on June 26, 2014
  33. physics

    1.∫ x³(x+1)dx 2.∫ (1-cot²x)dx 3.∫ cosx(tan x + sec x) dx 4.∫ dx/√5x+8 using u= 5x+8 and using u= √5x+5

    asked on June 20, 2014
  34. physics

    1.∫ csc (u-π/2) cot (u-π/2) du. 2.∫ sec^2(3x+2)ds 3.∫ √3-2s ds 4. ∫ 12(y^4+y4y^2+1)^2 (4^3+2y) dy use u= y^4+4y^2+1

    asked on June 19, 2014
  35. ineering mechanics

    IF THE COEFFICIENT OF ROLLING RESISTENCE OF A CYLINDER OF RADIUS R=1FT ROLL FROM UNIFORM VELOCITY?

    asked on June 16, 2014
  36. physics

    A 45.0 kg object is moving with a velocity of 17 m/s. How long must a 25.0 N force act on the object to bring it to a complete stop

    asked on January 26, 2012
  37. science please help

    a person touches a hot stove with her hand and quickly pulls it away in pain. Identify which three organs systems the body utilized in this reaction and explain the role each organ system played.

    asked on October 1, 2011
  38. math

    what are the rules to adding and subtracting negative numbers and positive numbers?

    asked on September 13, 2011
  39. math

    Find three consecutive numbers such that the sum of the second and the third numbers exceeds the first by 14

    asked on September 19, 2017
  40. Statstics

    According to a survey by Topez Enterprises, a travel auditing company the avg error by travel agent is 128. suppose this figure was obtained from random sample of 41 travel agent & standard dervivation is 21. What is the point estimate of the national avg

    asked on August 28, 2016
  41. Physics

    Research on the physics of living systems.Give two examples to show how physics helps to understand the concepts of evolution, biological systems of living organisms.

    asked on July 15, 2016
  42. Physics

    A ball thrown vertically upward and return in20 seconds.find the velocity and the maximum height with explanation

    asked on May 25, 2016
  43. SIMPLE INTEREST

    A person borrows ₹5000 for 2 years at 4% p.a. simple interest. He lends to it to another person at 25/4%p.a. for 2 years. Find his gain in the transaction per year.

    asked on February 8, 2016
  44. math

    If the cost price (C.P.) of 6 articles is equal to the selling price (S.P.) of 4 articles find the gain percent.

    asked on February 4, 2016
  45. math

    The expression y=ax²+bx+c has always the same sign as of 'a' if:

    asked on July 10, 2014
  46. maths

    1.Log10(x²-12x+36)=2 2.log4 log3 log2 x=0 3.log3 [log9x+1/2+9x]=2x 4.2log4(4-4)=4-log2(-2-x)

    asked on June 26, 2014
  47. physics

    1)if y=e^x . cot x then dy/dx will be 2) f(x)=sin²x-cos²x then the value of f' (π/4)

    asked on June 20, 2014
  48. physics

    1) y=4+5x + 7x³. Find dy/dx 2) if y= tan x cos²x then dy by dx will be-

    asked on June 20, 2014
  49. psy

    Define cognitive bias and choose two that you may experience. Explain how you would use critical thinking to overcome cognitive bias to ensure academic success

    asked on January 10, 2014
  50. physics

    Use the Biot Savart law to compute the magnetic field at the center of a metallic ring. the ring has a radius of 10^-6 m and is connected to two infinite wires. the current in the wires is 1 amp. the ring is lying in the [x,y,z= 0 ] plane. the first wire

    asked on May 21, 2013
  51. math

    what are the seconds in 19.8 degrees

    asked on December 8, 2011
  52. Genetics

    Given below is a pedigree in which the inheritance of an autosomal dominant disease gene is being followed. Linked to the disease gene (3 cM = 3% recombination away) is a RFLP marker with 2 alleles (5 kb and 3 kb). Given the DNA marker compositions for

    asked on October 10, 2011
  53. HELP!!!!

    why do we celebrate hispanic heritage month

    asked on October 10, 2011
  54. science

    a person touches a hot stove with her hand and quickly pulls it away in pain. Identify which three organs systems the body utilized in this reaction and explain the role each organ system played.

    asked on October 1, 2011
  55. Social Studies

    how has the National Junior Tennis League Chapter impacted human lives?

    asked on May 16, 2011
  56. math

    A sum of ₹400 amounts to ₹480 in 4 years.What will it amount to, if the rate of interest is increased by 2%p.a.?

    asked on February 7, 2016
  57. science

    Calculate net force when mass =2000kg, uniform velocity =60kg/hr

    asked on November 7, 2015
  58. physics

    A particle moves according to the eqn a=-kv where a is acceleration and v is the velocity and k is a constant. If initial speed is V0 find the speed at any instant

    asked on August 19, 2014
  59. physics

    1)if y=x³+2x²+7x+8 then dy by dx will be- 2) if y= 1/x⁴ then, dy by dx will be: 3) if y = x² sin x, then dy/dx will be-

    asked on June 20, 2014
  60. physics

    1)Y=x+x².+1/x+1/x³ find dy by dx 2)y=x²+1/x². Find dy by dx

    asked on June 20, 2014
  61. Science

    Hello. I have this question for my class. We were to mix Na2S2O3 to a a test-tube with Varsol layer on top and an Aqueous layer (of I2/KI) on the bottom. I observed a lighter colour change in both layers. How would I express that as a chemical equation?

    asked on March 9, 2014
  62. maths

    A movie company wants to make movies featuring various monsters. They want each movie to have at least 2 different monsters and no two movies to have the exact same set of monsters. What is the minimum number of monsters the company must use in order to

    asked on October 27, 2013
  63. Global History ( persians and assyria)

    differences between Assyria empire and persian empire

    asked on October 3, 2011
  64. Word meaning please

    what is Hemophilia? please explain thanks

    asked on September 13, 2011
  65. Math

    what is the difference between an equation and an inequality. Also could you give me a example of each

    asked on May 17, 2011
  66. Science

    Can I have as much information about seals as possible please?

    asked on January 25, 2011
  67. pre algebra

    13-3p=-5(3+2p)

    asked on October 2, 2010
  68. 7th grade math

    25t=25t+5

    asked on October 2, 2010
  69. social studies

    please give me the pictures of grasslands and forest of different parts of world provided with the description about them ? For grasslands, start with http://www.blueplanetbiomes.org/grasslands.htm From there, click to web sites for the North American

    asked on June 15, 2007
  1. Math

    35cm*45cm

    posted on June 4, 2019
  2. Math

    10P5*5=1260 1260*5/10=630 so 1260 possible teams, half will contain alex

    posted on May 11, 2019
  3. Physics

    Answer of this question

    posted on December 9, 2018
  4. Physics

    Correct answer is 4kw

    posted on August 20, 2018
  5. math

    7725

    posted on September 27, 2016
  6. Math

    If 50 meter of cloth costs rupe 3725 how much clothes can be bought for 80 metres.

    posted on July 17, 2016
  7. AP chemistry

    znco3+o2

    posted on July 15, 2016
  8. physics

    28 P and Q are two vectors; P+Q>or equal to R > or equal go P-Q

    posted on September 10, 2015
  9. Chemistry

    C)

    posted on May 5, 2015
  10. science

    YES THE CHOICES ARE RIGHT

    posted on April 16, 2015
  11. Physics

    i don't know the answer but how 4 the man height varies

    posted on February 13, 2015
  12. physics

    Its physics

    posted on June 19, 2014
  13. Chemistry

    Kc = ([x]^2)/A 7.94*10^-6 = ([x]^2)/2.70 M 2.1438*10^-5 = x^2 x = 4.630118789*10^-3 I hope this helps Janavi.

    posted on April 5, 2014
  14. Chemistry

    Initially: H2S = 0.28 H2(g) = 0 S(g) = 0 At equilibrium: H2S = 0.28 - x H2(g) = x S(g) = x Kp = Products/Reactants = ([x][x])/(0.28-x) x^2 +0.813x-0.22764 = 0 x =(-b plus or minus sqrt(b^2 -4ac))/2a x = 0.220303199 or approximately 0.220 What is the total

    posted on April 5, 2014
  15. Chemistry

    All you have to do Step 1: Set the solids equal to 0 for G Step 2: Look up the gases (in this case just CO2) Step 3: Once you look up thr gasses add the delta g for each equation to each other. Step 4:Solve for Q using the Delta G= delta G not plus RTLnQ

    posted on March 24, 2014
  16. Science

    Also forgot to include: I2(aq) + I- I3- (aq) = AQUEOUS LAYER I2(aq) I2 = VARSOL

    posted on March 9, 2014
  17. Science

    Sorry, my apologies. After adding Na2S2O3, the Varsol layer became colorless and there was no change in the Aqueous layer.

    posted on March 9, 2014
  18. Math

    The diameter of the balloon after 3 s is 8.64cm.

    posted on February 15, 2014
  19. physics

    The answer I get is 12.24 rad/s. Can anyone confirm this?

    posted on December 12, 2012
  20. Global History ( persians and assyria)

    and similarties THANK YOU

    posted on October 3, 2011
  21. sciecnce (hypothesis)

    ok thanks got it

    posted on September 18, 2011
  22. sciecnce (hypothesis)

    i need to do that experiment above is the hypothesis corrrect

    posted on September 18, 2011
  23. meaning of a word(quick) thanks

    beat out is a good word for surpass right

    posted on May 18, 2011
  24. math

    14,500x09=1,305.oox05=6525 the answer is $6,525.00

    posted on February 24, 2010
  25. MATH

    $14,500 loan at 9% interest for 5 years is525.00

    posted on February 24, 2010
  26. math

    a.5.30

    posted on February 4, 2010
  27. math

    b.3,219

    posted on February 4, 2010
  28. math

    b.3,219

    posted on February 4, 2010
  29. math

    a.$5.30

    posted on February 4, 2010
  30. Maths - check answer

    a.$5.30

    posted on February 4, 2010
  31. Math

    d.1.67%

    posted on February 1, 2010