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OpenStudy (anonymous):
Science Help Please! Willing to Give a Medal 1. The pitch of the siren of a moving fire truck changes from high to low as the fire truck passes by. What property of a sound wave changes as the fire truck goes by? A. amplitude B. density C. temperature D. frequency 2. In the above light wave, the property labeled A determines which characteristic of visible light? A. brightness B. speed C. reflection D. color
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OpenStudy (anonymous):
please help
OpenStudy (anonymous):
anyone there
OpenStudy (anonymous):
please help
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