A jet plane at takeoff can produce sound of intensity 10.0 W/m 2 at 30.0 m away. But you prefer the tranquil sound of normal conversation, which is 1.0 μ W/m 2 . Assume that the plane behaves like a point source of sound. (a) What is the closest distance you should live from the airport runway to preserve your peace of mind? (b) What intensity from the jet does your friend experience if she lives twice as far from the runway as you do? (c) What power of sound does the jet produce at takeoff?
A jet plane at takeoff can produce sound of intensity 10.0 W/m 2 at 30.0 m away. But you prefer the tranquil sound of normal conversation, which is 1.0 μ W/m 2 . Assume that the plane behaves like a point source of sound. (a) What is the closest distance you should live from the airport runway to preserve your peace of mind? (b) What intensity from the jet does your friend experience if she lives twice as far from the runway as you do? (c) What power of sound does the jet produce at takeoff?
A jet plane at takeoff can produce sound of intensity 10.0 W/m2 at 30.0 m away. But you prefer the tranquil sound of normal conversation, which is 1.0 μW/m2. Assume that the plane behaves like a point source of sound. (a) What is the closest distance you should live from the airport runway to preserve your peace of mind? (b) What intensity from the jet does your friend experience if she lives twice as far from the runway as you do? (c) What power of sound does the jet produce at takeoff?
A jet plane at take-off can produce sound of intensity 9.30 W/m2 at 30.5 m away. But you prefer the tranquil sound of normal conversation, which is 1.0 μW/m2. Assume that the plane behaves like a point source of sound.
What is the closest distance you should live from the airport runway to preserve your peace of mind?
Express your answer in kilometers.
What intensity from the jet does your friend experience if she lives twice as far from the runway as you do?
Express your answer in watts per meter squared.
What power of sound does the jet produce at take-off?
Express your answer in watts.
A jet plane at takeoff can produce sound of intensity10.0 W/m2 at 30.0 m away. But you prefer the tranquil sound of normalconversation, which is 1.0 mW/m2. Assume that the plane behaveslike a point source of sound. (a) What is the closest distance you shouldlive from the airport runway to preserve your peace of mind? (b) Whatintensity from the jet does your friend experience if she lives twice asfar from the runway as you do? (c) What power of sound does the jetproduce at takeoff?
A typical adult ear has a surface area of 2.1×10-3m2. The sound intensity during a normal conversation is about 3.2×10-6 W/m2 at the listener's ear. Assume that the sound strikes the surface of the ear perpendicular. How much power is intercepted by the ear?
Chapter 15 Solutions
University Physics with Modern Physics Plus Mastering Physics with eText -- Access Card Package (14th Edition)
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