Exceeding the sound barrier refers to speed of travel, not loudness of sound. A speaker cannot "exceed the sound barrier".
A diaphragm can mean two different things at least in this case:' 1) a barrier-type contraceptive used by women 2) the big flat muscle separating the chest cavity from the abdominal(stomach) cavity. Diaphragm the muscle is what we use to breathe, w/o it we'd be unable to expand our chest and fill our lungs.
It becomes domed.
we would all die
Battle of the Barrier happened on 1840-08-19.
It would be permanently deformed, then break.
there would be no ocean anymore.
there would be no ocean anymore.
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it is likely that the audience will distrust the speaker.
A new speaker is elected if the speaker can not function.
If the opening in the diaphragm is too wide part of the stomach goes up giving rise to a condition called as Hiatus hernia.
If the diaphragm below your thoracic cavity isn't moving, then no air is moving either into or out of your lungs, and your immediate future is looking dim. You really need to do something about it.