## Search found 3 matches

September 26th, 2018, 4:34 pm
Forum: 2019 Question Marathons
Topic: Sounds Of Music C
Replies: 120
Views: 15110

### Re: Sounds Of Music C

\frac{340 m/s}{2\pi}\cdot\sqrt{\frac{2 cm^2}{450 cm^3 \cdot 1 cm}}\cdot\frac{100 cm}{1 m}=361 Hz , where 450 mL is the volume of a 20 oz soda bottle (obtained through DuckDuckGo) Someone else can go because I'm clueless. A 20oz bottle is actually 591mL, not 450mL, which makes the answer 315Hz , but...
September 5th, 2018, 6:37 pm
Forum: 2019 Question Marathons
Topic: Sounds Of Music C
Replies: 120
Views: 15110

### Re: Sounds Of Music C

Hi there, here is my answer: forgive my formatting Answer|dB = 10 log I / I (threshold intensity ) = 10 log 4(1 x 10^-4 W/m^2) / 1 x 10^-12 W/m^2 = 86dB, so final is 86dB Here is my question : A soprano saxophone is considered an open pipe resonator. If the pipe was straightened out it would be 65 ...
September 5th, 2018, 6:03 pm
Forum: 2019 Question Marathons
Topic: Sounds Of Music C
Replies: 120
Views: 15110

### Re: Sounds Of Music C

Hi there, here is my answer: forgive my formatting Answer|dB = 10 log I / I (threshold intensity ) = 10 log 4(1 x 10^-4 W/m^2) / 1 x 10^-12 W/m^2 = 86dB, so final is 86dB Here is my question : A soprano saxophone is considered an open pipe resonator. If the pipe was straightened out it would be 65 c...