Physics, 08.08.2019 11:10 girlchamp654
In which of the following conditions would a person not hear an echo? a. a sound wave reaches the ear, and the reflected wave reaches the ear less than 0.1 seconds later, b. a person is standing in the range of the sound waves coming from the original sound sources as well as the reflected waves, c. the reflecting wave source is approximately 21.5 meters from the person, d. a person is standing 30 meters in front of the reflecting surface.
Answers: 3
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This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.
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In which of the following conditions would a person not hear an echo? a. a sound wave reaches the e...
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