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How far does a sound travel when you hear an echo?
The distance sound travels before you hear an echo depends on various factors such as the environment and the surfaces it reflects off. Generally, sound can travel up to approximately 17 meters (56 feet) before the echo becomes noticeable.
What is the minimum distance of the obstacle from the source to hear an echo?
The minimum distance for an echo to be heard is approximately 17.2 meters (56.4 feet) from the source. This accounts for the time it takes for sound to travel to the obstacle and then reflect back to the source for the echo to be perceived.
What is the formula to determine how far away is an object whose echo takes 9 seconds to return?
The formula to determine distance based on echo time is: Distance = (echo time * Speed of sound in air) / 2. Since sound travels at approximately 343 meters per second in air, if the echo takes 9 seconds to return, the distance from the object would be approximately 1543.5 meters away.
How many meters will a photon of light energy travel in one nanosecond?
In one nanosecond, a photon of light energy will travel approximately 0.3 meters in a vacuum, which is the speed of light.
What do you call the repetition of sound caused by the reflection of sound waves?
The repetition of sound caused by the reflection of sound waves is called an echo. It occurs when sound waves bounce off surfaces and return to the listener after a delay, creating a distinct repetition of the original sound.
