Ajet plane at take-off can produce sound of intensity 9.20 W/m at 30.5 m away. But you prefer the tranquil sound of normal conversation, which is 1.0 W/m. Assume that the plane behaves like a point source of sound. Part A What is the closest distance you should live from the airport runway to preserve your peace of mind? Express your answer using two significant figures. TE Submit Part B Request Answer I= Cand ? km What intensity from the jet does your friend experience if she lives twice as far from the runway as you do? Express your answer using two significant figures. VE EMED ? 4 W/m Part C What power of sound does the jet produce at take-off? Express your answer using two significant figures. 13 P= Seme ? W