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  • 21-02-2024
  • Physics
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A student stands 180 m in front of a vertical, flat cliff and bangs together two pieces of wood to make a short, loud sound. A timer records the echo of the sound 1.5 seconds after the pieces of wood are banged together. speed of sound? 120 m/s 540 m/s 240 m/s 270m/s

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