Ultrasound Physics with Sononerds Unit 3

[@Ladoctoraza5588]

I procrastinated to watch these videos now I realise they are exactly what I should have watched before my exams. Thank you so much for them I am actually only now starting to grasp certain important concepts.

[@k.b.1635]

You will be the reason I pass my SPI. THANK YOU.

[@NOVA92x]

how'd you do?

[@yomi_ash6324]

Again so happy I found your channel. Is that weird if I just keep saying that in every video 😂

[@user-pz1ux1qw6f]

I’m confused. Why does a longer wavelength increase the speed? It seems like a shorter wavelength would increase speed?

[@amypinder]

You've done an amazing job at explaining these 7 parameters of sound! Thank you! I wonder if you might be able to help answer a question of mine? In the equation you've given us for propagation speed (c = elasticity / density), it implies that speed is directly related to elasticity...meaning when the value for elasticity increases, then speed should also increase...but we know that in real life speed increases as the medium becomes more stiff (not more elastic). Can you help me understand why the formula isn't c = stiffness / density? TIA!

[@MehrdadAmini-dw3jq]

I find your you tube channel by chance and I think is the best one. thank you. may I have your book or your transcripts please

[@dolmathakuri6009]

Thank you for a great lecture ❤️

[@jameslindquist2802]

Hi! Thank you so much for the videos! extremely helpful! Would love to have access to the workbook if that is possible.

[@user-tx7fy4cs9s]

Hi! Where can I find your workbooks?

[@lovemarie6242]

how can I download the workbook?

[@ethangeorge6895]

Great lectures all i need for uss physics

[@genrottluff1084]

Hello, I am confused by the formula you show for propagation speed: c = elasticity/density... in the relationships section you state that if the medium is more elastic the speed is slower which I believe indicates these variables are inversely related, however the equation makes it look as though c and elasticity are directly proportional meaning if elasticity increases so should c... what am I missing?

[@bintbint1316]

40:45 why are you dividing the distance with frequency for wavelength? Shouldn't it be 1.54mm/ms divided by frequency?

[@Sononerds]

The # of cycles is also 5 cycles (so not using frequency) over a given length of 1.5 mm, which is what I was showing. You could also use the wavelength formula, like I show in the next example. Different ways to get to the same answer.

[@md222010]

can you explain the video from minute 22:44 to 23:54 ?

[@i_love_to_dance_1233]

How can I get the workbook??

[@nadialam9181]

Thank you 😊

[@galiiajonboboevatalktodrg]

❤️🙏🏻

[@jennyjournals8133]

what workbook? would love to get one

[@kinzaazam782]

ur lectures r so great n helpful bt I can't reach out to u ???

[@brandiparvin6355]

How do you know when to use 1540 and 1.54

[@elahehamini3439]

1540meter per 1second=1540x1000mmper 1x1000,000microseconds=1540x1000/1000,000=1.54mm/1microseconds because both numerator and denominator divide 1 million

[@hatimido3831]

You are teaching very fast

[@myhanh6404]

Hi M! Are the workbooks available? I would love to send my support for one.

[@Sononerds]

Hi! Yes - sort of :) I am currently rewriting everything, so units 1-5 and 7 are available. Send me an email at [e-mail]

[@xiao7256]

@@Sononerds Hi M, I sent an email previously but never got a response? How do I donate and how do I get access to the workbooks available?

[@dsgrl8910]

Yes i sent an email also

[@StephanieRodriguez-jc1wz]

@@Sononerdshow much is the work book

[@user-pz1ux1qw6f]

I’m confused. Why does a longer wavelength increase the speed? It seems like a shorter wavelength would increase speed?