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An observer (O) is located

An observer is located directly between two speakers located 20 metres apart.Speakers are in phase and both are emitting a sound
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2. asked by Kelly
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An observer is located directly between two speakers, located 20m apart. The speakers are in phase with each other, and both are
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2. asked by Robert
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A hot air balloon rising vertically is tracked by an observer located 4 km from the lift‑off point. At a certain moment, the
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2. asked by Destini Ray
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A hot air balloon rising vertically is tracked by an observer located 3 miles from the lift-off point. At a certain moment, the
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2. asked by Reonea
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A hot air balloon rising vertically is tracked by an observer located 2 miles from the lift-off point. At a certain moment, the
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2. asked by the dude
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A hot air balloon rising vertically is tracked by an observer located 4 miles from the lift-off point. At a certain moment, the
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2. asked by MEMO
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Observers at P and Q are located on the side of a hill that is inclined 32° to the horizontal, as shown. The observer at P
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2. asked by e
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Observers P and Q are located on the side of a hill that is inclined 32 degrees to the horizontal as shown(picture given). The
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2. asked by Jen
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Which situations might cause two observers (A and B) to measure different frequencies for the same vibrating object? Select the
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An observer atop a cliff sees a speedboat approaching a dock located at the base of the cliff directly below the observer.
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2. asked by Brad
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