ridhi

Most popular questions and responses by ridhi
  1. kinetic theory

    Air is filled at 60deg C in a vessel of open mouth. Upto what temperature should the vessel be heated so that one-fourth of the air may escape? Ans 171degC

    asked on April 29, 2012
  2. physics(heat)

    a mixture of 250g of water and 200g of ice at 0deg C is kept in a calorimeter which has a water equivalent of 50g. if 200g of steam at 100deg C is passed through this mixture, calculate the final temperature and the mass of contents of the calorimeter. ans

    asked on May 29, 2012
  3. Maths

    An insect climbs 10m slippery rock in a minute and then slips down 9m in the next minute. How long will it take him to climb a 30m slippery rock?

    asked on May 28, 2017
  4. Physics

    A ball is thrown towards a vertical wall from a point 2m above the ground and 3m from the wall. the initial velocity of the ball is 20m/s at an angle of 30deg above the horizontal. if the collision of the ball with the ball is perfectly elastic. how far

    asked on April 12, 2012
  5. social science

    Ways to protect the monuments like Konark,khajuraho,Sanchi,Ajanta&Ellora.(Aiso give need to preserve and protect the monuments.) Monuments can be protected by limiting tourists, keeping cars, trucks, and buses as far away as possible, and protecting the

    asked on June 13, 2006
  6. physics

    while standing on an open truck moving at a velocity of 35m/s, a man sees a duck flying diresctly overhead. The man shoots an arrow at the duck and misses it.. the arrow leaves the bow at a vertical velocity of 98m/s. the truck accelerates to a constant

    asked on April 18, 2012
  7. physics

    Two projectiles A and B are projected at the same time in the same vertical plane. A is projected at a height of 2m above the ground making an angle of 30deg with the horizontal. B is projected with the velocity of 20m/s at an angle of 60deg with the

    asked on April 29, 2012
  8. physics(heat)

    A geyser heats water flowing at the rate of 3L/min from 27 deg C to 77 deg C. if the geyser operates on a burner, what is the rate of combustion of the fuel if its heat of combustion is 40000J/g?

    asked on May 29, 2012
  9. physics

    A stone is thrown from a building of height 40m and reaches a maximum height of 49m from the ground. The stone strikes the ground at a distance of 10m from the foot of the building. find the angle of elevation from which the stone is projected. Assuming

    asked on May 16, 2012
  10. physics

    The length l of a simple pendulum is about 0.5m, and can be measured within 1mm. what accuracy is required in the measurement of periodic time T of 100 oscillations if the error in l and T are to produce equal percentage in the calculation of acceleration

    asked on April 20, 2012
  11. physics

    an object of mass 0.1kg is rotated in a horizontal circle by a string 1m long. the maximum tension in the string before it breaks is 50N.what is its maximum frequency reached?

    asked on April 29, 2012
  12. physics(heat)

    A geyser heats water flowing at the rate of 3L/min from 27 deg C to 77 deg C. if the geyser operates on a burner, what is the rate of combustion of the fuel if its heat of combustion is 40000J/g?

    asked on May 29, 2012
  13. physics

    why when steady state conditions apply the rate of heat flow is the same?

    asked on June 1, 2012
  14. physics conduction

    a one brick thick wall of 10cm thickness has temperatures 40deg C and 5deg C at the surfaces. if the thermal conductivity of the brick is 0.6W per m per K, what is the rate of heat flow per unit area W per m square through the bricks if steady state

    asked on June 1, 2012
  15. maths

    If the pth term of an AP is q and the qth term is p, prove that its nth term is (p+q-n).

    asked on May 4, 2012
  16. physics

    two children ride bicycle towards each other with instant velocity of 20m/s and 10m/s. Each child releases a ball 6m above the ground with forward horizontal velocity of 40m/s relative to the bicycle. if the two balls collide in above the ground. what was

    asked on May 3, 2012
  17. physics

    a metal cylinder containing water at 60ged C, has a thickness of 4mm.And the thermal conductivity 400W per m per K. it is lagged by felt of thickness 2mm and thermal conductivity 0.002W per m per K. the room temperature is 10deg C.Find the temperature

    asked on May 1, 2012
  18. projectiles

    two children ride bicycle towards each other with instant velocity of 20m/s and 10m/s. Each child releases a ball 6m above the ground with forward horizontal velocity of 40m/s relative to the bicycle. if the two balls collide in above the ground. what was

    asked on April 29, 2012
  19. science

    what is the importance of food?

    asked on July 31, 2008
  1. physics(heat)

    thank you so much :)

    posted on June 1, 2012
  2. physics

    thanks so much :)

    posted on June 1, 2012
  3. physics

    thanks :)

    posted on May 29, 2012
  4. maths

    thnaks :)

    posted on May 5, 2012
  5. physics

    thanks :)

    posted on May 1, 2012
  6. physics

    thnakss soo much

    posted on April 29, 2012
  7. physics

    hmmm...ok thanks :)

    posted on April 29, 2012
  8. kinetic theory

    thank you soo much :)

    posted on April 29, 2012
  9. projectiles

    sorry ''in'' isnt there!

    posted on April 29, 2012
  10. physics

    thanks alot...it was an easy method :)

    posted on April 29, 2012
  11. physics

    are you sure we can use length of the string 1m as the radius? and why?

    posted on April 29, 2012
  12. physics

    no the answer is 1.6 revolutions per second

    posted on April 29, 2012
  13. Physics 30

    given; u=30km/hr=30*10/36=8.33m/s v=50km/hr=50*10/36=13.88m/s a=2.5m/s^2 a=(v-u)/t t=5.55/2.5 =2.22s so the answer is a

    posted on April 20, 2012
  14. Physics

    Ok. The answer is 32.53m And i got that. I didn't use the L equation Instead i found the time taken to reach h=0m then found R using R=(VoCosĪ±)t THANK YOU ALL SOO MUCHHH!!!! IT WAS GIVING ME A TOUGH TIME! :)

    posted on April 13, 2012