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A bat emits an ultrasonic pulse with a frequency of 4 6 kHz. It senses a moth flying by and 'measures' a time delay of

A bat emits an ultrasonic pulse with a frequency of $46 kHz.$ It senses a moth flying by and 'measures' a time delay of $3.3 ms.$ How far away is the moth in units of meters? The speed of sound in air is $343 \frac{}{}$ m/s.

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