Though supersonic aircraft measure speed as a function of external air pressure, this is only an approximate method. In air the speed of sound is a function of temperature only. In sea water Mach 1 is equal to 5,148 feet per second, or nearly 3,600 miles per hour. I would like to know if my answer is correct. In 25-degree Celsius fresh water, sound propagates at 4,940.1 feet per second. If the speed of sound was 340.0 m/s, how far from the wall was she? For this question I got 85 m. A student standing near a brick wall claps her hands and hears the echo 0.250 s later. I am not too sure if my answers are correct. (a) How far below the top of the well is the surface of the water? The speed of sound in air (at the ambient temperature) is 336 m/s.Ī sound wave has a frequency of 707 Hz in air and a wavelength of 0.50 m. The sound of the splash is heard 2.40 s after the rock is released from rest. Using the relationships 3.3 feet in a meter, 5280 feet i na mile, and the time relationships you know, determine the sped in miles per hour.(answer:772mi/h) i don't know why that answer thing is there but i put itĪ rock is dropped from rest into a well. The sound wave from the explosion propagating through the air reaches her 4.00 s later. She immediately lifts her head out of the water. What frequency (in Hz) is heard by a boy on a bicycle riding away from the car at 6.50 m/s? Take the speed of sound to be 343 m/s.Ī woman is swimming when she hears the underwater sound wave from an exploding ship across the harbor. 1 Speed Of Sound In Air to Miles Per Second 0.2138: 70 Speed Of Sound In Air to Miles Per Second 14.9626: 2 Speed Of Sound In Air to Miles Per Second 0.4275: 80 Speed Of Sound In Air to Miles Per Second 17.1001: 3 Speed Of Sound In Air to Miles Per Second 0.6413: 90 Speed Of Sound In Air to Miles Per Second 19. a) assume the change is constant up toĪ baseball hits a car, breaking its window and triggering its alarm which sounds at a frequency of 1250 Hz. The sound waves travel in a medium when there are particles for the propagation of these sound waves. Speed of Sound in Vacuum The speed of sound in a vacuum is zero meters per second, as there are no particles present in the vacuum. The speed of sound in air (m/s) depends on temperature according to aprox expression of v= 331.5 + 0.607 Tc Tc= temp in celcius In dry air, temperature decreases about 1deg celcius for every 150m rise in altitude. The speed of sound in air at 20 o C is 343.2 m/s which translates to 1,236 km/h. 1) What is the difference between the speed of light and the speed of sound? 3.0 x 10^8 - 3.4 x 10^2 2) How many times The speed of sound is approximately 3.4 x 10^2 meters per second.
The speed of light is approximately 3.0 x 10^8 meters per second. Suppose that sound travels at 340 mps (meters. In which of the following situations is a sound wave most likely to travel through air? A) An alarm clock rings in a vacuum. Question: (4) The speed of sound through the air near sea level is linearly related to the temperature of the air.