Recent content by krvolok

  1. K

    Supersonic airplane emits a sound when right over a listener

    Here, take a look at this nice applet: http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=457.0 Drag the little ear all the way left. Doesn't it travel straight down?
  2. K

    Supersonic airplane emits a sound when right over a listener

    But the plane is assumed to be perfectly silent, and then emits a bang. Obviously the bang will lag behind the plane since the sound can't go any faster, but how is the vertical component affected at all?
  3. K

    Supersonic airplane emits a sound when right over a listener

    Hello, I'm having a bit of a problem with the following problem: A supersonic airplane flying at the velocity v is flying horizontally to the ground with altitude h. At the exact moment when the plane is vertically above a listener on the ground, it emits a sound. It takes Δt seconds for the...