Submarine A travels horizontally at 11.0 m/s throughocean water. It emits a sonar signal
Chapter 17, Problem 40(choose chapter or problem)
Submarine A travels horizontally at 11.0 m/s throughocean water. It emits a sonar signal of frequency f 55.27 3 103 Hz in the forward direction. Submarine B isin front of submarine A and traveling at 3.00 m/s relativeto the water in the same direction as submarineA. A crewman in submarine B uses his equipment todetect the sound waves (pings) from submarine A.We wish to determine what is heard by the crewmanin submarine B. (a) An observer on which submarinedetects a frequency f 9 as described by Equation 17.19?(b) In Equation 17.19, should the sign of vS be positiveor negative? (c) In Equation 17.19, should the sign ofvO be positive or negative? (d) In Equation 17.19, whatspeed of sound should be used? (e) Find the frequencyof the sound detected by the crewman on submarine B.
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