A bat flying in a cave emits a sound and receives its echo 0.31 s later. How far away is the cave wall? | Cheap Nursing Papers

A bat flying in a cave emits a sound and receives its echo 0.31 s later. How far away is the cave wall?

A bat flying in a cave emits a sound and receives its echo 0.31 s later. How far away is the cave wall?

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