1. The problem statement, all variables and given/known data A sound source is placed at the top of a (h = 121.5m) radio tower. The source has a frequency of 653.8 Hz and an amplitude of 11.4 nm at point A. The air surrounding the tower has a density of 1.32 kgm-3 and sound travels through it with a velocity of 340 ms-1. Point A is 10.8 m above the source. You may ignore any reflections of the sound from the ground. 2. Relevant equations P = (1/2) ρAv (ω s( max ) )^2 3. The attempt at a solution Determine angular velocity from frequency. Sub in density and velocity. I think A means amplitude and I would put in 11.3nm. However, s(max) is "displacement amplitude". Does this mean that s(max) = 11.4nm and A= distance from Point A to sound source?