3 ms·
There is insufficient data to answer this question. Perhaps the jet is flying on the other side of cloud cover, on the other side of a mountain range, or insid
by devmonk 16y ago
There is insufficient data to answer this question.
Perhaps the jet is flying on the other side of cloud cover, on the other side of a mountain range, or inside a canyon. What elevation is the observer? What is the velocity of the observer to the light reflected from the jet and what is the velocity of the observer to the sound coming from the jet? What is the temperature of the air or medium that the light and sound are travelling in. How do we know it is the jet making noise?
This kind of poorly thought out question that makes me want to quit software development, which is full of users with requests like this.
- aphyr 16y agoOh come off it. There is no cloud cover, the earth is a flat plane, the flight path is level, and we're assuming standard temperature and pressure. Lightspeed may be neglected, and the observer is at rest with regards to the earth and atmosphere. The jet is making noise. Pedantic people who can't do back-of-the-envelope calculations due to "underspecified" problems piss me off, partly because I used to be one of them. ;-)