A speaker emits sound which has an intensity of 0.14 W/m2 at a distance of 1.2 m. What is the acoustic power of the speaker? Group of answer choices 10 W 7.5 W 5.0 W 2.5 W
Added by Jeffrey M.
Step 1
The intensity (I) of a sound wave is defined as the power (P) per unit area (A). The formula is given by: \[ I = \frac{P}{A} \] Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 55 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A speaker emits sound which has an intensity of 0.14 W/m² at a distance of 1.2 m. What is the acoustic power of the speaker? 10 W 7.5 W 5.0 W 2.5 W
Adi S.
The low-frequency speaker of a stereo set has a surface area of 0.07 m^2 and produces 1.63 W of acoustical power. What is the intensity at the speaker (in W/m^2)? W/m^2 If the speaker projects sound uniformly in all directions, at what distance (in m) from the speaker is the intensity 0.204 W/m^2?
Prabhu R.
The low-frequency speaker of a stereo set has a surface area of 0.05 $\mathrm{m}^{2}$ and produces 1 $\mathrm{W}$ of acoustical power. What is the intensity at the speaker? If the speaker projects sound uniformly in all directions, at what distance from the speaker is the intensity 0.1 $\mathrm{W} / \mathrm{m}^{2} ?$
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD