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[Post New]13 Jan 2007 23:31:52 IST
    Subject: optics
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ankitasingh (0)

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Olaaa!! Perrrfect answer. 0  [0 rates]
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a fish rising vertically to the surface of a lake at 3m/s observes a bird diving vertically downat the rate of 9m/s. what is the actual velocity of the bird?
    
 

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