https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy The Grand Finale en-us 2020-07-21 21:44:42 UTC 2023-05-18 13:47:00 UTC hello@padlet.com a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659564029 I decided to set up the second scenario first.]]> 2020-07-21 21:45:32 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659564029 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659564437 Under the assumption that the temperature was 20°C, I calculated the speed of sound using the equation for air.]]> 2020-07-21 21:46:31 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659564437 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659565071 Knowing that this straw oboe acts as a pipe closed at one end, I was able to use the length of the straw to calculate the wavelength.]]> 2020-07-21 21:47:47 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659565071 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659565753 Using the speed of sound and the wavelength that I previously calculated, I was able to calculate the fundamental frequency of the oboe. This is quite a bit higher than my measured frequency. It's a little odd, because the fundamental frequency is the lowest frequency of a periodic wave form, yet it's much higher than my measured frequency. I guess this is because the app I used on my phone isn't all too accurate, and also because it's hard to make the exact same pitch constantly on this straw oboe, so the results may have gotten a bit wonky.]]> 2020-07-21 21:49:18 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659565753 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659566793 This is actually quite close to my measured period, only .0004 seconds off. ]]> 2020-07-21 21:51:47 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659566793 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659566867 2020-07-21 21:51:59 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659566867 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659567007 2020-07-21 21:52:18 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659567007 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659567100 Just out of curiosity, I measured what the wave speed actually would be according to the frequency of the sound that I measured. After this calculation, I was curious whether this value was close to what the speed of sound would be in the temperature of my house. My house was at 74° F at the time, so I calculated the speed of sound using that temperature. Sadly, it's 345 m/s, which is not anywhere near the wave speed I calculated. I think this is because one, the air in my house is not completely dry, and two, this wavespeed relies on my measured frequency, which I explained why it may be off previously.]]> 2020-07-21 21:52:35 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659567100 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659569514 2020-07-21 21:58:04 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659569514 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659569649 2020-07-21 21:58:23 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659569649 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659569806 2020-07-21 21:58:42 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659569806 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659570039 2020-07-21 21:59:12 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659570039 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659570613 Admire my beautiful (not) drawing skills.
I realized a bit too late that I wasn't supposed to label the crests and troughs on this one.]]> 2020-07-21 22:00:29 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659570613 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659570824 If only I could actually play any instruments. I do play a mean straw oboe, though.]]> 2020-07-21 22:01:00 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659570824 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659580593 2020-07-21 22:21:28 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/659580593 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660467814 2020-07-22 21:59:02 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660467814 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660467934 Some of these are very rough measurements, so take them with a grain of salt. ]]> 2020-07-22 21:59:18 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660467934 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468009 What a relief that I get to draw a free body diagram for this scenario, it felt so weird not drawing one for the straw oboe!]]> 2020-07-22 21:59:29 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468009 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468362 Calculation of Buoyant Force and Force of Gravity

]]> 2020-07-22 22:00:12 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468362 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468848 2020-07-22 22:01:04 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468848 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468921 I thought why not?]]> 2020-07-22 22:01:15 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660468921 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660469166 I thought this density seemed awfully high until I remembered that the density of water was 1000 kg/m^3, and that shut me right up.]]> 2020-07-22 22:01:46 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660469166 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660470928 According to this, 100% of the volume was submerged in water, which I can say without a doubt, is not true. ]]> 2020-07-22 22:05:33 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660470928 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660473510 Now this value makes a lot more sense.]]> 2020-07-22 22:11:01 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660473510 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660529567 This isn't for points, but I wanted to see how this value compared to what I saw in reality. About 7.8% is a pretty realistic number, actually. It actually looked like only that much was submerged under the water.]]> 2020-07-23 00:02:41 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660529567 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660530887 I'm not sure about this, but extra calculations don't hurt. Since there's no forces in the x direction, the net force is equal to the buoyant force!]]> 2020-07-23 00:04:48 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660530887 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660531783 2020-07-23 00:06:04 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660531783 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660531956 2020-07-23 00:06:20 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660531956 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532077 2020-07-23 00:06:29 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532077 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532185 2020-07-23 00:06:41 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532185 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532636 2020-07-23 00:07:26 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532636 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532805 2020-07-23 00:07:43 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660532805 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660533003 I chose to use sin, rather than cos, because I figured that the waves began at equilibrium rather than starting at max amplitude, and besides, I measured them from equilibrium. The waves moved in the positive x direction, so I made it minus x/v. I wasn't sure if I was supposed to substitute my measured time in for t, but we didn't substitute it in in any of our practice problems during lecture videos, so I decided not to. This wave equation utilized my very rough measurements of wavelength and amplitude, so it's not the most accurate of equations.]]> 2020-07-23 00:07:57 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660533003 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660540899 This diagram is NOT drawn to scale. The waves are not drawn very equally, but that is only due to my poor drawing skills, just imagine that they are perfect.]]> 2020-07-23 00:19:02 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/660540899 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/661141628 I have successfully used wave skills, fluids, and forces all together in this scenario!]]> 2020-07-23 16:08:54 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/661141628 a_kozlowski6 https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/661143255 Well, it's been a long, tough 8 weeks, but it has finally come to an end. Thank you for making this online class very easy to navigate and making such great lecture videos, such that I feel like I learned more than I would if the class was in person. I wish you both the best, and thank you again!]]> 2020-07-23 16:11:02 UTC https://padlet.com/a_kozlowski6/9lw66lhlgz18u8yy/wish/661143255