A dolphin located in sea water at a temperature of 25degc
A dolphin located in sea water at a temperature of 25°C emits asound directed toward the bottom of the ocean 175 m below. How much time passes before it hears anecho?
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a beam contains 30 x 106 doubly charged positive ionsper cubic centimeter all of which are moving north with a speed
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a dolphin located in sea water at a temperature of 25degc emits asound directed toward the bottom of the ocean 175 m
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imagine a stationary sourceof sound waves by stationary we mean that it is not moving with respect to the medium how
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