Physics

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Indicate true or false in each of the following statements:

1. a tube open at one end resonates with only odd harmonics
2. The frequency of a sound emitted by a vehicle as it moves toward you rises as you listen
3. a tube open at both ends resonates with all harmonics
4. an increase in sound level by 3dB is equivalent to increasing the sound intensity by a factor of 10
5. speed of sound in a medium depends on the inertial properties of the medium

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