c) When testing a supersonic jet nozzle for certification purposes, an aerospace engineerused a far-field microphone to measure the noise power spectrum density (PSD) radi-ated by the jet issuing from the nozzle. The engineer found that the measured noisespectrum, PSD(f)=:dWwhere f is frequency and W is acoustic power can be repres-dfented by a piece-wise linear function (Equation1):PSD=0,if f<0;PSD=Af,if02fo.Calculate the acoustic power, W in physical pressure units (Pa") corresponding to the jetnoise perceived at the same microphone location as a function of A and fo. What is theacoustic power in case A=200 Pa'/ Hz and fo=100 Hz? Provide a clear explanation ofevery step of your analysis.

c) When testing a supersonic jet nozzle for certification purposes, an aerospace engineer used a far-field microphone to measure the noise power spectrum density (PSD) radi- ated by the jet issuing from the nozzle. The engineer found that the measured noise spectrum, PSD(f)= ented by a piece-wise linear function (Equation1): where f is frequency and W is acoustic power can be repres- df PSD=0,if f<0; PSD=Af,if02fo. Calculate the acoustic power, W in physical pressure units (Pa") corresponding to the jet noise perceived at the same microphone location as a function of A and fo. What is the acoustic power in case A=200 Pa'| Hz and fo=100 Hz? Provide a clear explanation of every step of your analysis.

c) When testing a supersonic jet nozzle for certification purposes, an aerospace engineer used a far-field microphone to measure the noise power spectrum density (PSD) radi- ated by the jet issuing from the nozzle. The engineer found that the measured noise spectrum, PSD(f)= ented by a piece-wise linear function (Equation1): where f is frequency and W is acoustic power can be repres- df PSD=0,if f<0; PSD=Af,if02fo. Calculate the acoustic power, W in physical pressure units (Pa") corresponding to the jet noise perceived at the same microphone location as a function of A and fo. What is the acoustic power in case A=200 Pa'| Hz and fo=100 Hz? Provide a clear explanation of every step of your analysis.