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QUESTION 3 A sonar echo returns to a submarine 0.9 s after being emitted. What is the distance to the object creating the ech
QUESTION 6 A 80 W speaker emits sound radially and uniformly in all directions. What will be the intensity of sound in W/m2 a
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Q13) Criven abricatorggmail.com 02 lah Time al travel = 0.gs Speed of sound in ocean water - Vicceon = 1540mIS so distance at

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