a$)$ A longitudinal wave propagating through a tube filled with water has an intensity of $3\mathrm{.}00\backslash$times $106$W$/$m$23\mathrm{.}00\backslash$times $106$ W$/$m $2$ and a frequency of $3400$ Hz$.$ Calculate the amplitude A and the wavelength for this wave. The density of water is $1000$kg$/$m$31000$kg$/$m $3$ and its bulk modulus is $2\mathrm{.}18\backslash$times $109$Pa$2\mathrm{.}18\backslash$times $109$ Pa$.$b$)$ If the tube is filled with air at a pressure of $1\mathrm{.}00\backslash$times $105$Pa$1\mathrm{.}00\backslash$times $105$ Pa and a density of $1\mathrm{.}20$kg$/$m$31\mathrm{.}20$kg$/$m $3,$ what amplitude A and wavelength will a longitudinal wave have with the same intensity and frequency as in part $($a$)?$c$)$ In which fluid is the amplitude greater, in water or air? Calculate the ratio between the two amplitudes. Why is it not equal to $1\mathrm{.}00?$