3/31/2023 0 Comments Speed of sound in km![]() In fact, hydrophones, or underwater microphones, if placed at the proper depth, can pick up whale songs and manmade noises from many kilometers away. We assume you are converting between speed of sound air and kilometre/second. It is interesting to compare this speed with the speed of molecules as a result of their thermal energy. The area in the ocean where sound waves refract up and down is known as the "sound channel." The channeling of sound waves allows sound to travel thousands of miles without the signal losing considerable energy. How many speed of sound in 1 km/s The answer is 2.938669957977. This causes the speed of sound to increase and makes the sound waves refract upward. Below the thermocline "layer," the temperature remains constant, but pressure continues to increase. The thermocline is a region characterized by rapid change in temperature and pressure which occurs at different depths around the world. Once the sound waves reach the bottom of what is known as the thermocline layer, the speed of sound reaches its minimum. As the whale’s sound waves travel through the water, their speed decreases with increasing depth (as the temperature drops), causing the sound waves to refract downward. The speed of sound in air is approximately 331.5 m/s at 0 C or around 1200 km per hour. The lower the density that of a medium, the faster the speed of sound and the higher the compressibility is, the slower the sound travels. The whale produces sound waves that move like ripples in the water. The properties that have an affect on the speed of sound in air are pressure, density, and molecular mass of the medium. Imagine a whale is swimming through the ocean and calls out to its pod. So plugging in the numbers you get 1700 meters, a tad over one mile. The distance-speed-time relationship is d Vt. For ’back of the envelope’ calculations you can take V 340 km/sec. This speed varies slightly depending on the temperature, pressure and humidity. ![]() These factors have a curious effect on how (and how far) sound waves travel. The distance depends on the speed of sound in air. While pressure continues to increase as ocean depth increases, the temperature of the ocean only decreases up to a certain point, after which it remains relatively stable. Since temperature decreases with increasing altitude in the atmosphere, so too does the speed of sound in air at 0C, it is about 1,220 km/h (760 mph), though. While sound moves at a much faster speed in the water than in air, the distance that sound waves travel is primarily dependent upon ocean temperature and pressure. ![]()
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