Question & Answer: Page 1

Ranjita asks : A body of mass 2kg is lying on a rough inclined plane of inclination 30degree.Find the magnitude of force parallel to incline needed to make block move (a) up the incline (b) down the incline.cofficient of static friction=0.2

Tag : make,rough,plane,needed,move,parallel,static,lying,magnitude,inclined

Category : Class XI | On : 2012-02-16 02:16:36

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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.

Tag : circular,magnitude,constant,degree,moving,velocity,particle,motion,covered,speed

Category : Class XI / XII | On : 2012-01-18 10:22:53

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Anny says :

12/02/2012 05:07:08

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Neetu asks : an electrom initially at rest falls ata distance of 1.5 cm in the uniform electric feild of magnitude 20000 N/c. the time taken to fall this distance........

Tag : magnitude,uniform,initially,electric,science,time,fall,feild,electrom,falls,rest

Category : Science | On : 2010-05-07 07:09:36

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Anoop c s says :

08/05/2010 11:06:17

Net acceleration,A = (g-(eE/m)){Because of the electric field.Then apply the formula S=ut+(1/2)*A*t*t.Here u=0,S=1.5 cm,E=20000N/c,g=9.8 m/s*s,e & m are constants.Then solve for t

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Shalini asks : A charge of 0.5 coloumb is kept inside the pot filled with water and other charge of same magnitude is suspended in the air at 10 cm away from the charge in water.is their any interaction between these two charges.if yes,then which formula i can apply to find ?(given height of pot=5cm)

Tag : yesthen,water,filled,suspended,magnitude,interaction,formula,inside,height

Category : Engineering Entrance | On : 0000-00-00 12:00:00

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Reshma chandrasekharan says :

02/03/2010 11:58:08

Yes, defenitely there is interaction.. use relative permittivittyof water.. to what extend this happens i m nt sure

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Shivangi verma asks : a stone tied to the end of string 80cm long is whorled in a horizontal circle with a constant speed.if the stone makes 25 revolutions in 14 sec what is the magnitude of accln of the stone?

Tag : string,speed,revolutions,long,horizontal,whorled,makes,tied,magnitude,stone

Category : Engineering Entrance | On : 0000-00-00 12:00:00

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Gouranga charan says :

00/00/0000 12:00:00

The stone covers a total angular displacement of 2*pie in one revolution.So in 25 rev, it will cover a total disp of 25*2*pie. the angular velocity == TOTAL DISP/TOTAL TIME TAKEN. Now accln of the stone ==(ANGULAR VELOCITY)^2*RADIUS.....................

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