This forum uses cookies This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

 corkscrew and speed of sound. solid Member Posts: 171 Threads: 17 Joined: Nov 2019 Institution: Université de Bretagne Occidentale 04-21-2020, 07:39 AM (This post was last modified: 04-21-2020, 10:23 AM by solid. Edit Reason: references ) Dear Julien. For a test tube with L = 23.7 cm and D = 2.8 cm your program gives f = 375.0 Hz and c_air = 381 m/s, to high... Strange, but the standard "Audio spectrum" of phyphox gives f = 351 Hz (c_air = 345 m/s) - much more acceptable By the way the resonance peak of our "Resonance curve" gives f = 362 Hz ... It is very important to measure the temperature around the bottle of wine to be opened. I would suggest to add a feature to your program: determination of the temperature from c_air using a simple formula t = (c_air/20)² - 273 (°C) . A+ References: Peter Froehle,  "Finding the Outdoor Temperature Using a Tuning Fork and Resonance",  The Physics Teacher 44, 358 (2006); https://doi.org/10.1119/1.2336137 Jeffrey D. Goldader, "Determining Absolute Zero Using a Tuning Fork",  The Physics Teacher 46, 206 (2008); https://doi.org/10.1119/1.2895669 « Next Oldest | Next Newest »

 Messages In This Thread corkscrew and speed of sound. - by julien - 04-17-2020, 07:53 PM RE: corkscrew and speed of sound. - by solid - 04-19-2020, 12:24 PM RE: corkscrew and speed of sound. - by julien - 04-20-2020, 11:52 AM RE: corkscrew and speed of sound. - by solid - 04-20-2020, 03:34 PM RE: corkscrew and speed of sound. - by julien - 04-20-2020, 03:48 PM RE: corkscrew and speed of sound. - by solid - 04-21-2020, 07:39 AM RE: corkscrew and speed of sound. - by julien - 04-21-2020, 01:56 PM RE: corkscrew and speed of sound. - by julien - 05-08-2020, 01:10 PM RE: corkscrew and speed of sound. - by solid - 05-08-2020, 04:01 PM RE: corkscrew and speed of sound. - by julien - 05-08-2020, 07:42 PM RE: corkscrew and speed of sound. - by solid - 05-09-2020, 10:58 AM RE: corkscrew and speed of sound. - by julien - 05-09-2020, 11:46 AM RE: corkscrew and speed of sound. - by solid - 05-09-2020, 05:35 PM RE: corkscrew and speed of sound. - by julien - 05-09-2020, 06:43 PM RE: corkscrew and speed of sound. - by solid - 09-25-2021, 10:03 AM RE: corkscrew and speed of sound. - by Jens Noriʇzsɔɥ - 09-27-2021, 01:04 PM RE: corkscrew and speed of sound. - by solid - 09-27-2021, 01:34 PM RE: corkscrew and speed of sound. - by Jens Noriʇzsɔɥ - 09-27-2021, 08:57 PM RE: corkscrew and speed of sound. - by solid - 09-27-2021, 09:13 PM RE: corkscrew and speed of sound. - by julien - 10-07-2021, 07:50 PM RE: corkscrew and speed of sound. - by solid - 12-31-2021, 06:30 PM RE: corkscrew and speed of sound. - by Jens Noriʇzsɔɥ - 01-10-2022, 11:59 AM

Forum Jump: