# Physical Science

How many meters away is a cliff if an echo is heard 0.500 s after the original sound? Assume that sound traveled at 343 m/s on that day.

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1. distance = rate x time
d = 343 m/s x 0.5 s = ?? meters.
But the sound had to travel there AND back to your ear; therefore, take 1/2 of the answer to fiond th edistance to the cliff.

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2. 85.75

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3. 171.5

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