The back wall of an auditorium is 28.0 m from the stage. If you are seated in the middle row, how much time elapses between a sound from the stage reaching your ear directly and the same sound reaching your ear after reflecting from the back wall?
The speed of sound in the air is 343 m/s.
1/2 of this auditorium = 14 m
1s———-343————-1s
=28/343
= .082 s
= 8.16 x 10-2 s
272My exfe/y-riendofribnd is thinking of joining the marines. I don’t feel too strongly about his choice, but I will support him although I do not think he qualifies to join. He is suffering from depression and is going to counseling for it. He was taking medication but he took himself off of it cold turkey. He still struggles with depression even though he won’t tell anyone. He also has a heart condition called syncope (sp?) And he gets light headed and dizzy frequently and has fainted from it. Does he qualify? I don’t want him to join and then be turned away.
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