A cop cars siren has

  1. A siren emits a sound of frequency 1200 kHz. With which frequency is it received by a car moving at a speed of 20 m/s.a) Away
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    2. Rita asked by Rita
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  2. Initially, you hear the siren at 90 dB. When the distance between you and the ambulance is a quarter of what it was initially,
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    2. Nadya asked by Nadya
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  3. A marine siren consists of a cylinder 72 cm in length closed at one end.for sound through air at 336 m/s. find the lowest
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    2. omar asked by omar
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  4. The Sound Off Siren Company tests every fifth siren for sound quality and every eighth siren for mechanical quality. The daily
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    2. BLT asked by BLT
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  5. Residents of Hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers. Suppose a siren produces a
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    2. Mike asked by Mike
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  6. Danny is measuring the loudness of a police siren. At t=2 seconds, the siren's loudness is at its maximum of 112 dB for the
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    2. SC asked by SC
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  7. Read the sentence.The fire truck’s siren woke me. Which is the best way to revise this sentence using descriptive detail and
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  8. You're in an auto traveling at 25.0m/s toward a pole mounted warning siren. If the siren's frequency is 365 Hz, what frequency
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    2. jess asked by jess
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  9. The diagram shows the variation of air pressure from an alarm siren at particular instant. The speed of sound in the air is
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    2. RITIKA asked by RITIKA
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  10. The frequency of an ambulance's siren is 700 Hz.If a pedestrian on the side of the road hears the siren at 756 Hz, approximately
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    2. kim..need help asked by kim..need help
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