You click your fingers in a large hall and hear the echo 0.5 seconds later off the back wall. How far is the back wall?
A boat send a sound to the bottom of the ocean and it takes 2 seconds to return to the boat. How deep in the ocean?
Please answer the questions above for 15 points, help desperately needed!:)
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You click your fingers in a large hall and hear the echo 0.5 seconds later off the back wall. How fa...
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