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8 October, 21:41

An alarm clock is placed in a sealed container without any air. Describe what you will observe concerning the mechanical waves and the EM waves when the alarm clock goes off.

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  1. 8 October, 21:57
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    You wont hear the sound from it because the sound is caused by vibrating the air molecules. this wont make a sound because the vibrations don't have a medium to travel through.
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