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Doppler Demonstration
The animation represents a cross section of a three dimensional sound wave propagating away from a moving source. In which of the animation(s) is the source traveling slower than the speed of sound?
Animations 1, 2 and 3
Animations 1 and 2
Animations 4 and 5
Insufficient information. (Explain below.)
3.
In problem 2, we showed a moving source emitting sound waves. Using Animation 5, calculate the speed of the
source in units of the sound speed, e.g., Mach units. Explain what method you used to do this calculation.
honors extra
In Huntsville, tornadoes are big business. I'm told that the TV stations have better
radar units than the Weather Service. So rather than listen to the weather radio, everyone
tells me to turn on the local TV weather station. Evidently, the TV guys are so proud
of their radar, they advertise "Doppler Max", as part of their name. Just what is this
big thing about Doppler? How is it related to tornadoes? If a tornado has a wind speed
of 300 miles per hour, and the radar has a frequency of 4 GHz, just how much Doppler
are we talking about?
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I received no help from anyone on this assignment.