apparently the answer is that at 4200m, the ray emitted horizontally will reach the surface.I have no idea how my teacher came up with that.Is there some piece of information I am missing?
Homework Statement
speed of sound in water is 1600m/s at the surface and increases linearly with depth at a rate of 0.017/s, find the range at which a ray emitted horizontally at a source of dept 150m will reach the surface
C = sound speed in water (1500m/s)
gradient = g (0.017/s)...
Consider the following function of space and time for a propagating plane wave were nonlinear effects are included via a constant "B"
u(x,t) = u[t - x/[c + Bu(x,t)]]
show that u(x,t) satisfies a first order non linear PDE.
1a.
Determine the Sound Pressure level at a point due to a machine running alone if the measurements at the point with the machine 'on' and 'off' are 94 dB and 90 dB re 20 uPa respectivele
b)
Consider white noise where P(f) = A for f >= 0. Show that the SPL's corresponding to successive 1/N...