How far away is it when it receives the echo

Reference no: EM13649288

A bat moving at 15.0 {\rm m/s} emits a high-frequency sound as it approaches awall that is 29.5 m away. Assuming that the bat continues straight toward thewall, how far away is it when it receives the echo? (Assume the airtemperature in the cave to be 0^\circ {\rm C}.)

Reference no: EM13649288

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