A state trooper chases a speeder along a straight stretch
A state trooper chases a speeder along a straight stretch of road; both vehicles move at 136 km/h. The siren on the tropper's vehicle produces a sound of 490 Hz. What frequency is heard by speeder? (Take the speed of sound in air to be 343 m/s.)
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a state trooper chases a speeder along a straight stretch of road both vehicles move at 136 kmh the siren on the
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after 600 kg of water at 792 oc is mixed in a perfect thermos with 300 kg of ice at 00 oc the mixture is allowed to
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