the answer is 340 m/s
340 Meter.
Echo is a delay of sound - it comes at a slower rate and appears to echo. Often distance is a major factor of echo.
It is an echo.
Very loud! *ECHO* *ECHo* *ECho* *Echo* *echo*
Echo Canyon State Park was created in 1970.
wind erosion
An echo is heard when sound waves bounce off a surface and return to the listener's ear with a slight delay. This delay is due to the time it takes for the sound waves to travel to the surface and back. The distance between the listener and the surface, as well as the acoustics of the surrounding environment, can affect the clarity and intensity of the echo.
Nothing to it. You do that every time you speak in the room. You just don't notice it, because the delay is so short. Even if you're 20 feet from a wall, the echo returns to you in only about 0.036 second, which is too soon for your hearing system to notice it. The nearest that a reflecting surface can be in order for you to notice the echo is about 60 feet away (for 0.1 sec delay). Most rooms are not that big.
In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room. A true echo is a single reflection of the sound source. The time delay is the extra distance divided by the speed of sound.">In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room. A true echo is a single reflection of the sound source. The time delay is the extra distance divided by the speed of sound.
because your pet giraffes neck is growing.
To delay a script in seconds you would use the sleep() function as shown below: <?php echo "hello"; sleep(5); // delays the script for 5 seconds echo "finished"; ?>
John could hear the echo of his canteen hitting rocks as it rolled down the canyon wall.