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help in physics

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PostSubject: help in physics Fri Jul 24, 2009 9:49 pm

I have a question taken from one of the entrance exams. Please help me solve this.

The bob of simple pendulum executes SHM in water with a period T while the period of oscillation of the bob is T0 in air. Neglecting the frictional force of water and given that density of the bob is 4000/3 kg/m3, what is the relationship between T and T0 ?

How can you relate density to time period? I do not know how to solve this, please post the solution if you know how to solve.
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PostSubject: Re: help in physics Thu Jul 30, 2009 10:30 pm

hey...this is depressing...not even one found a way to help me?

Thank you
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