The speed of sound in air is 340 ms–1 and speed of sound in water is 1500 ms–1.
(i) Find the distance travelled by sound signal in water in 17 seconds.
(ii) Find the time taken by sound signal in air to travel the same distance.
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Speed travels 25.5 Km in water in 17 seconds.
Time taken for speed to travel the same distance in air = 75 seconds.
Explanation:
Speed of sound in air is 340 ms–1
Speed of sound in water is 1500 ms–1
(i) Time = 17 seconds
Distance travelled in water = Speed in water * time = 1500 * 17 = 25500 m = 25.5 Km
Speed travels 25.5 Km in water in 17 seconds.
(ii) Speed in air = 340 ms-1; Distance = 255500
Time = Distance / speed = 25500 / 340 = 75 seconds
Time taken for speed to travel the same distance in air = 75 seconds.
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