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ridhi
Questions (17)
a one brick thick wall of 10cm thickness has temperatures 40deg C and 5deg C at the surfaces. if the thermal conductivity of the
1 answer
542 views
why when steady state conditions apply the rate of heat flow is the same?
2 answers
403 views
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
3 answers
524 views
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
1 answer
420 views
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
3 answers
3,434 views
A stone is thrown from a building of height 40m and reaches a maximum height of 49m from the ground. The stone strikes the
0 answers
1,077 views
If the pth term of an AP is q and the qth term is p, prove that its nth term is (p+q-n).
2 answers
907 views
two children ride bicycle towards each other with instant velocity of 20m/s and 10m/s. Each child releases a ball 6m above the
0 answers
367 views
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
2 answers
619 views
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
8 answers
3,139 views
two children ride bicycle towards each other with instant velocity of 20m/s and 10m/s. Each child releases a ball 6m above the
2 answers
384 views
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
3 answers
1,401 views
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
7 answers
929 views
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
3 answers
1,051 views
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
1 answer
692 views
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
7 answers
3,370 views
what is the importance of food?
2 answers
345 views
Answers (14)
thank you so much :)
thanks so much :)
thanks :)
thnaks :)
thanks :)
thnakss soo much
hmmm...ok thanks :)
thank you soo much :)
sorry ''in'' isnt there!
thanks alot...it was an easy method :)
are you sure we can use length of the string 1m as the radius? and why?
no the answer is 1.6 revolutions per second
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
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! :)
