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The speed of sound is the distance travelled by the sound waves in the time between the original sound and the echo. For a direct echo, the distance travelled is double the distance to the reflecting surface.

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8y ago
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5mo ago

Echoes can be used in measurement through techniques such as ultrasound imaging and sonar. Ultrasound imaging uses echoes to visualize internal structures in the human body, while sonar uses echoes to detect objects underwater by analyzing the time it takes for the sound waves to return. These techniques rely on the principle that echoes bounce back to the source when they encounter a boundary between different mediums.

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Q: Describe ways that echoes are used in measurement?
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