INTERNATIONAL ASTROPHYSICS ASSOCIATION

 

NEWPROBLEM OF THE WEEK:  f (x)=(cosx-sinx)/(sinx+cosx) dx    find If (x)

Solution to last week problem: II1/x (1+logx) dx      =>put (1+ logx)= t &solve

Ans: log (1+logx)-1

                            

IAPA CHALLENGE:

IF ANY BODY AROUND THE GLOBE SOLVE THIS PROBLEM WILL BE

DIRECTLY SELECTED FOR IAPA FOR SESSION2002/1/BIG-BANG

NEWAS STARTED FROM 10 MAY 2002

 PROBLEM: 

A small metal sphere (mass m=0.05 gram) hangs                             ceiling

From a weightless, non-conductive thread of length

( l = 1 meter) exactly in the middle of the parallel-

Plate capacitor. The plates are vertical, large and

grounded and the distance between them is d= 2 cm.

At what charge  Q of the sphere will be in equilibrium       l=1m

Become unstable?

.                                                                                                  m=0.05g

                                        

                                                                                   

      CLIICK HERE for sol.                                      d= 2cm

     

      

 

 

    

     Sol is avilable

     ON 02-JUNE-2002 .

                                                          GROUNDED                                      

 

 

 

NEW            FORTH-COMING CRP (COMBINE RESEARCH PROG.)

NEXT SESSION: SPEED OF LIGHT

APPLICTION FROMS AVILABLE FREE FROM: 20 MAY 2002

LAST DATE TO SEND THE COMLETE APPLICATION:20 AUG 2002

RESULT OF THE SESSION 2002/2/SOL   :    25 AUG 2002

SESSION STARTS FROM : 01 SEPT 2002

FOR APPLICATION (FREE) AND FURTHER INFO. OF CRP   CLICK HERE

 

 

 

                         

 

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