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Dolphins rely on echolocation to be able to survive in theocean. In a 20 C ocean, a dolphin produces an ultrasonic soundwith a frequency of

Dolphins rely on echolocation to be able to survive in theocean. In a 20 °C ocean, a dolphin produces an ultrasonic soundwith a frequency of 125 kHz. What is the wavelength of this sound,in meters?While remaining stationary, the dolphin emits a soundpulse and receives an echo after 0.220 s. How far away, in meters,is the reflecting object from the dolphin?

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