Hello! Let me try to answer this :)
Thanks and please correct if there are any mistakes ^ ^
Answer:
Dolphins use a method called echolocation to detect things such as obstacles and prey in the water. If a dolphin swimming in seawater at 25°C sends a 220-dB click with a frequency of 120.0 Hz, and then detects the reflection of the click exactly one-twentieth of a second later, approximately how far away is the object?
Idk it’s making me answer a question in order to get help on my own