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Hearing the siren of an approaching fire truck, you pull over to the side of the road and stop. As the truck approaches, you hear a tone of 470 Hertz; as the truck recedes, you hear a tone of 420 Hertz.

Find how much time will it take for the truck to get from your position to the fire 5.5 kilometer away, assuming it maintains a constant speed?

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Category:- Physics
Reference No.:- M91221057

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