pavatharani

Popular questions and responses by pavatharani
  1. maths

    express 15.7121212... in the form p/q where p and q are integers and q not equal to 0.

    asked on September 7, 2011
  2. physics

    a stone falls from a cliff and travels 34.3m in the last second before it reaches the ground. calculate the height of the cliff.

    asked on June 12, 2011
  3. maths

    factorise a^12x^4-a^4x^12

    asked on September 7, 2011
  4. physics

    two ends of a train moving with constant acceleration pass a certain point with velocities u and v. what is the velocity with which the middle point of the train passes the same point? I have asked this question before you have answered u+v/2. but my mam

    asked on July 3, 2011
  5. physics

    two boys start running straight towards each other from two points that are 100m apart. one runs with a speed of 5m/s, while other moves at 7m/s.how close are they to the slower one's starting point when they meet?

    asked on June 13, 2011
  6. physics

    the weight of a solid is 80g in air and 50g in liquid of relative density 1.5. calculate the relative density of the solid.

    asked on October 4, 2011
  7. physics

    a car accelerates from rest at a constant rate 'a' for some time. after which it decelerates at a constant rate'b' and comes to rest. if the total time elapsed is t second, evaluate 1) the maximum velocity reached and 2) the total distance travelled. the

    asked on July 13, 2011
  8. physics

    a car moving on a straight road with a speed of 20m/s. at t=0 the driver of the car applies the breaks after watching an obstacle 150m ahead. after application of breaks, the car retards with 2m/s^2. find the position of the car from the obstacle at t=15s.

    asked on July 3, 2011
  9. physics

    a body is released from a height and falls freely towards the earth. exactly one sec later another body is released.what is the distance between the two bodies 2sec after the release of the second body. if g=9.8m/s^2.

    asked on June 14, 2011
  10. physics

    aball is thrown vertically upward with a speed v from a height h above the ground. find the time taken for the ball to strike the ground.(consider acceleration due to gravity =g)

    asked on June 12, 2011
  11. physics

    a body is thrown vertically upward return to the earth in 3sec. (a)what was the initial velocity of the body (b)what height did the body reach? neglect the resistance of air.

    asked on June 14, 2011
  12. physics

    two balls are dropped to the ground from different heights. one ball is dropped 2s after the other but they both strike the ground at the same time, 5s after the first is dropped. what is the difference in height from which they are dropped? from what

    asked on June 14, 2011
  13. maths

    can we mark 2 or more points common to two angles

    asked on September 12, 2011
  14. maths

    in triangle abc if ab=bc then angle a = angle c or angle a = angle b

    asked on September 7, 2011
  15. maths

    factorise a^7+ab^6

    asked on September 7, 2011
  16. maths

    simplify 7*3^1/2-5*2^1/2/(48^1/2-18^1/2)

    asked on September 7, 2011
  17. maths

    simplify (3+3^1/2)((2+2^1/2))^2

    asked on September 7, 2011
  18. physics

    a body travels half of its total path in the last second of its free fall from rest.what is the duration of fall . you have answered the question before but the answer my mam gave is 3.4sec but you have solved it to 1.4sec .plz solve it for me

    asked on August 18, 2011
  19. physics

    Between two stations a train acclerates uniformly at first, then moves with constant velocity and finally retards uniformly. If the ratio of the time taken be 1:8:1 and the max speed attained be 60km/h then what is the average speed over the whole journey?

    asked on August 16, 2011
  20. physics

    a body travels half of its total path in the last second of its free fall from rest.what is the duration of fall .

    asked on August 16, 2011
  21. maths

    if the sides of a triangleABC is 16cm,19cm and 15cm what about the angleB is it the greatest or smallest angle or is angleB = angleC or ia angleA the smallest angle? plz help

    asked on August 3, 2011
  22. maths

    factorize a^3+b^3+c^3-3abc

    asked on August 3, 2011
  23. maths

    if x=3+8^1/2, find x^4+(1/x^4)

    asked on August 3, 2011
  24. maths

    if x=1/(2-3^1/2) prove that x^3-2x^2-7x+5=3

    asked on August 3, 2011
  25. maths

    if a=(3^1/2+2^1/2)/(3^1/2-2^1/2) b=(3^1/2-2^1/2)/(3^1/2+2^1/2) find a^3+b^3

    asked on August 3, 2011
  26. maths

    factorize 2*2^1/2x^3+3*3^1/2y^3+5^1/2(5-3*6^1/2xy)

    asked on August 3, 2011
  27. maths

    factorize (x^2-4x)(x^2-4x-1)-20

    asked on August 3, 2011
  28. physics

    a car accelerates from rest at a constant rate 'a' for some time. after which it decelerates at a constant rate'b' and comes to rest. if the total time elapsed is t second, evaluate 1) the maximum velocity reached and 2) the total distance travelled.

    asked on July 13, 2011
  29. physics

    a stone is thrown vertically upward with an initial velocity u from the top of tower, reaches the ground with a velocity 3u. what is the height of tower?

    asked on July 13, 2011
  30. physics

    a body travels half of its total path in the last second of its free fall from rest.what is the duration of fall?

    asked on July 13, 2011
  31. physics

    a body thrown vertically upward returns to the earth in 3sec what was the initial velocity of the body? what height did the body reach? neglect the resistance of air. The answer after solving is 14.7m/s and 11m. please tell me how the answer is arrived.

    asked on July 10, 2011
  32. physics

    a point moving on a straight line traversed half the distance with a velocity v0. the remaining part of the distance was covered with velocity v1 for half the time, and with velocity v2 for the other half of the time. find the mean velocity of the point

    asked on July 3, 2011
  33. physics

    The two ends of a train moving with a constant acceleration pass a certain point with velocities u and v.what is the velocity with which the middle point of the train passes the same point?

    asked on July 2, 2011
  34. physics

    A car trvelling at 60km/h overtakes another car travlling at 42km/h.Assuming each car to be 5.0m long.find the time taken during the overtake.

    asked on July 2, 2011
  35. physics

    a stone falls from a cliff and travels 34.3 in the last second before it reaches the ground. calculate the height of the cliff?

    asked on June 13, 2011
  36. physics

    a stone is thrown vertically upward with an initial velocity v0. the distance travelled by it in time 1.5v0/g

    asked on June 12, 2011
  37. algebra

    how to prove that (a^2-b^2)^3+(b^2-c^2)^3+(c^2-a^2)^3=3 (a^2-b^2)(b^2-c^2)(c^2-a^2) please help

    asked on June 9, 2011
  38. algebra

    prove (a^2-b^2)^3+(b^2-c^2)^3+(c^2-a^2)^3=3(a^2-b^2)(b^2-c^2)(c^2-a^2)

    asked on June 3, 2011
  39. physica

    a stone is thrown vertically upward with an initial velocity v0. the distance travelled by it in time 1.5v0/g?

    asked on May 25, 2011