How to Solve a Sound Intensity Problem

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In this video tutorial I show how to solve a physics problem that required the sound intensity equation.
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This just helped me with my assignment, thank you 🙏🏾❤️

langelihleconco
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Why do we take 4times of pi r square. But area of circle is pi r square.

hariomchandra
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A Contractor Claims That Their Soundproofing Will Result In Only 17% Of The Sound Intensity Remaining Inside A Room. Assuming This Is The Case, , The New Sound Intensity Will Sound What % As Loud To People In The Room As The Pre-Sound Proofing Level Did? Round Your Answer To The Nearest 1%.

acherouvis