Question: dolphins rely on echolocation to be able to survive in the ocean. in a 2 0 degree Celsius ocean, a dolphin produces an ultrasonic sound

dolphins rely on echolocation to be able to survive in the ocean. in a

20

degree Celsius ocean, a dolphin produces an ultrasonic sound with a frequency of

125

kHz

.

Use

1530

/

s for the speed of sound in

20

degree Celsius ocean water. what is the wavelength of this sound, in meters? while remaining stationary, the dolphin emits a sound pulse and receives an echo after

0.140

.

how far away d

,

in meters, is the reflecting object from the dolphin?

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