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Bats emit sounds of frequencies around 35.0 kHz and useecholocation to find their prey. If a bat is moving at the speed of12.0 m/s toward an insect at an air temperature of20.0oC, (assume the insect and air are still)

(a) What frequency is heard by the insect?

(b) What frequency is heard by the bat from the reflectedsound?

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