Other's Responses
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observer B is also dead, has been since the train ran over him
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This person better have gotten this right, that is the best answer anyone could give.
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Touche.
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He answered the question, and gave a logical conclusion. I hope he got full credit.
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If A is in front of the train that means the train hasn#t hit him yet. Also B may have gotten behind the train after it passed.
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Join us
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Speed of train and sound is given but not the stationary frequency of the whistle. Sadistically, there was no whistle and observer A, being blind, neither saw nor heard the train's whistle. Yes, he is dead. Observer B simply fell off the back of the train in a drunken stupor and hence, wouldn't have heard a whistle anyway! Fo = A = B = 0Hz.
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r.i.p A + B
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Not yet, but he will be soon...
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wait what if observer b is deaf? a is dead b is deaf this cant be solved o.O
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A+
observer B is also dead, has been since the train ran over him