P18_071 - / ( n + 1) for n = 1 reection, so also can we...

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71. (a) When the speed is constant, we have v = d/t where v = 343 m/s is assumed. Therefore, with t = 1 2 (15 s) (the time for sound to travel to the far wall) we obtain d = (343)(15 / 2) which yields a distance of 2 . 6km ! (b) Just as the 1 2
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Unformatted text preview: / ( n + 1) for n = 1 reection, so also can we write d = (343 m / s) 15 s n + 1 = n = (343)(15) d 1 for multiple reections (with d in meters). For d = 25 . 7 m, we nd n = 199....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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