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Rohan khattri asks : An acid HA ionises as HA---H+ + A- the pH of 1M soltion is 5.its dissociation constant would be?? 
Category : Science |  On : 2012-04-13 11:04:04
 
14/04/2012 08:27:41
a/a+1
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Ranjita asks : a particle is moving in circular motion with constant speed v.find the change in magnitude of its velocity after it has covered an angle of 60 degree. 
Category : Class XI / XII |  On : 2012-01-18 10:22:53
 
Anny says :
12/02/2012 05:07:08
0
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Rahul prajapati asks : thank you for your answer. But Sir,how bursting of tyre is adiabatic process?, please explain. sir i think that bursting of tyre is isochoric process as tyre tube has constant volume & in summer season tyre tube expands as temperature increases (since at constant volume pressure is directly propotional to temperature )due to more expansion tyre tube can't tolerate this pressure & burst out . Is i am wright sir? if it is wrong, then what is correct explanation for it.  
Category : Class XI / XII |  On : 2011-11-18 02:14:58
 
Rishabh says :
08/05/2012 12:28:21
Well.. i am not sure , but i think what you are saying is expansion of Tyre.. and not bursting..bursting means the air coming out so quickly that there is no significant heat transfer and this is adiabatic process..but in expansion there of course heat transfers and that is isochoric..
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Neeraj kumar asks : A 2 tonne Maruti Ritz is driven down a 50 incline at a speed of 90 kmph, when the brakes are applied causing a constant total braking force of 7000N. Determine the distance travelled by the 
Category : Mechanical Engineering - ME |  On : 2010-12-25 08:57:25
 
21/11/2011 06:58:50
i donno
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Kshitij bathla asks : we say that resistance is opposition to current and so higher the resistance lower value of current will be thr and so output voltage v=ir must remains always constant but it never happens why????? 
Category : Engineering Entrance |  On : 2010-12-23 02:14:09
 
Anup kumar says :
29/12/2010 03:52:57
Sir,
M a student of class 11..
I do say!!
All that let it deflect is that with resistance temperature of the wire do deflect and hence the eletricity
flowing do vary
coz of temperature deflection!!

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