Recent content by kadesh

  1. kadesh

    Can't understand the question of a sound problem.

    Thanks again for your answer but you kind of lost me there... The graph shouldn't be a horizontal line (y=1) from 0 to 2t?
  2. kadesh

    Can't understand the question of a sound problem.

    Yes, indeed. My cousin asked me to help her with it. It's been some time since I solved this kind of problems and I forgot how to interpret them.
  3. kadesh

    Can't understand the question of a sound problem.

    Thank you for your greetings! Well, then if B hears the sound for 2t seconds then it hears the original sound for t seconds and the echo for t seconds?
  4. kadesh

    Can't understand the question of a sound problem.

    t is the duration in seconds of the sound emitted by A. We need to find that. I just named it t such that we can easily talk about it. Sorry about the misunderstanding.
  5. kadesh

    Can't understand the question of a sound problem.

    Homework Statement Two kids are positioned as in the following figure and A emits a long sound. d=100m, x=40m, vsound=340m/s How long (t) does the sound emitted by A has to be such that B perceives a signal that lasts 2t? Homework Equations [/B] The Attempt at a Solution [/B] Seems like...
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