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Bats use sound to sense objects by sending out short ultrasound pulses and listening for the...

Bats use sound to sense objects by sending out short ultrasound pulses and listening for the echo off the object.

A. Sketch the ultrasound pulse leaving the bat, reflecting off the object and returning to the bat.

B. If a stationary bat is 43 m from an object, how much time elapses between when the bat emits the pulse and it hears the echo? Assume the standard speed of sounds.

C. If the object were moving toward the bat, would the time for the echo to reach the bat change? Explain your answer.

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