Question

Q: A dolphin lets out a high pitch ultrasound call to locate
her lost call. She detects the ultrasound 0.85 seconds
later. How far away is the calf



Q: A few moments later she calls again, this time she detects the ultrasound 0.95 seconds
later. Is the calf getting closer or further away?


Q: An iceberg is 3,000 metres from a submarine. The submarine emits
ultrasound. How long until the submarine detects the iceberg?

Answer 1

Answer:

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