Problem 12.05 Part A An ocean fishing boat is drifting just above a school of tu

Question

Problem 12.05 Part A An ocean fishing boat is drifting just above a school of tuna on a fogg occurs on another boat at a distance of d 1.40 km (Figure 1). The speed of sound in air is 343 m/s, and in sea water is 1560 m/s How much time elapses before the backfire is heard by the fish? Express your answer to three significant figures and include the appropriate units y day. Without warning, an engine backfire h 0.033s tfish - Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining Figure 1 of 1 Part B How much time elapses before the backfire is heard by the fishermen? Assume that the fishermen hears the sound that travels only through air Express your answer to three significant figures and include the appropriate units b) tmanValue Units fisherman Submit My Answers Give Up dback Continue

Explanation / Answer

Distance to be travelled = 1.4 km = 1400 m

(Part A) Speed of sound in water = 1560 m/s

Hence, time required to travel sound 1400 m in water = 1400/1560 = 0.8974 s

Part B ) speed of sound in air = 343 m/s

Hence, time required to cover 1400 m in air = 1400/343 = 4.081 seconds

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