Recent content by skyisthelimit

Hi, I am wondering what does a spectrogram represent? I know that a spectrogram displays the amplitudes of specific frequencies, however, in the program Audacity, it plots a spectrogram of an entire sound (a few seconds). What does this spectrogram represent, and how is it different to at an...

Homework Statement The turning circle of a jet fighter when flying at a constant speed of 650m/s has a radius of 850km. What angle of bank must the plane have to achieve this manouevre? Homework Equations Angular velocity? Centipetal Force? I'm assuming. The Attempt at a Solution...

Homework Statement anyone have any suggestions for devices which generate vertical vibrations, preferably of variable amplitude (say, up to a cm or so) and of variable frequency (around 10hz) which can be used to vibrate a container full of, say, sand? Homework Equations umm... The...