Recent content by jwbehm

  1. J

    Destructive interference in a speaker value

    Hmm that gives me the answer I had already come up with which was incorrect, 9.935. Let me make sure I'm following you right Path difference = Sqrt(x^2 + 4^2) - x Here I'm plugging in wavelength/2, thus .775 = Sqrt(x^2 + 4^2) - x which brings me to (x+.775)^2= x^2+ 4^2 which eventually goes...
  2. J

    Destructive interference in a speaker value

    Excuse my poor handwriting. . . After plugging in all variables I came up with 9.94, which is incorrect. Is N supposed to equal 0 for this problem? p1 is from the bottom speaker to the listener and p2 is the hypotenuse
  3. J

    Destructive interference in a speaker value

    Homework Statement Speaker 1 is positioned at the origin and speaker 2 is at the position (0, 4.00) meters. They emit identical sound waves of wavelength 1.55 m, in phase. If you stand on the x-axis at (x, 0) meters, what is the smallest positive value for x for which you experience complete...
  4. J

    How Far Did the Stuntwoman Fall Based on Doppler Shift Analysis?

    Wow, that was ridiculously easy. 33.15m. Thanks for the help!
  5. J

    How Far Did the Stuntwoman Fall Based on Doppler Shift Analysis?

    I was afraid it would be something like that. . . thanks. I should be able to get it from here but if not ill be back within the next 20 minutes haha
  6. J

    How Far Did the Stuntwoman Fall Based on Doppler Shift Analysis?

    Homework Statement A stuntwoman is preparing to take a punch, crash through a "candy glass" window, and fall a long distance. The script calls for her to emit a piercing scream just before she hits the "ground." In reality, she will land on a waiting airbag. Lights! Camera! Action! The...
  7. J

    Help with Wave Speed Homework: Calculate Travel Time of Wave

    Hmm still confused. I think I am getting the angles in the wrong places. Is it Fgx= 30.38/cos32? Edit I don't think that's right. . . i don't know where I'm going wrong
  8. J

    Help with Wave Speed Homework: Calculate Travel Time of Wave

    ahhh i knew it would be something stupid like that! Ill look into it and get back on here. Thanks
  9. J

    Help with Wave Speed Homework: Calculate Travel Time of Wave

    Homework Statement A block of mass 3.1 kg rests on a frictionless inclined plane, held in place by a string of mass 0.023 kg. The angle of the plane from the horizontal is 32°, and the string length is 1.5 m. How long does it take a wave to travel from one end of the string to the other? Note...
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