Sound Intensity Level in Decibels & Distance - Physics Problems

[@TheOrganicChemistryTutor]

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Big facts

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bro in which country they teaching this in college ? we have to study this in highschool, damn I'm coming to your country.

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[@Eric-sq4hd]

Dude. Thank you GOD. Jesus christ man. Thank you so much. Was looking all over for how to solve for I. No one showed it. Until you. So simply. THANK YOU

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Finally I watched something useful

[@gregory2277]

It's 2021 and I'm studying for a physics final. Thank you for your help king.

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[@lauraashley2933]

An easy way to do the log without a calculator ( like on the mcat) for the problem at 1:10 is to say m+.n , where log( 4*10^7) so that 7+.4= 7.4. 7.4*10 is equal to 74, which is close to our initial value.

[@sidhnathmishra7129]

Do u knw bsc physics?

[@Simonmalith181]

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Doing vibrations in 4th year eng. Glad I can check out your vids for this course again.

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Once again you're the greatest!...Thank you Sir

[@samuelyusa7902]

Thankyou ! I finally understand !!

[@dianastefannypalomarescrow6358]

Great explanation!!! Thank you!!!

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Physics 2 final tomorrow morning!!!!

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Thank you so much beacuse my problem is solved after watching your video 😘

[@chamilasumathiratna4182]

Understood very well. thank you

[@silverauditore5949]

Hey thanks for this video!! I finally understood how db loss is calculated with distance and i will site your youtubelink in my project!!

[@zack_120]

2:50 - isn't it easier here by using the logarithmic law of log(m/n)=log(m)-log(n)? In this case it would be B/10=log(I)-log(I₀), ⇒ log(I) = B/10+log(I₀). Then solve I.

[@Qira]

this wasnt what i wanted... but i learned something

[@emebetsheferaw721]

Great video this is a life savor

[@MG-yo2nn]

Thank you, I have liked and subbed

[@GroundBeef1]

I don't get it at 0:56. When I do log(4*10^-5/1*10^-12) I get 6.02, not 7.6 what am I doing wrong :(

[@kelz89]

Thank you for this video

[@chloek3750]

Thanks for saving my butt as I finish physics hw before my final lol

[@timothyrich7211]

Thank you so much for your videos🙏🙏🙏

[@Pedoraruba304]

The hero for all

[@v2Recoil]

3:11 i need help, how did u get 1x10^-12?

[@bacanimichael]

Thank you!

[@ChristopherDempsey13]

For the first equation determining dB I get -163.8, NOT 76. Either I'm wrong or this is wrong and I'm not sure which. Perform reset of calculator and it is now returning 76. So annoyed with the set up of the calculator.

[@jewbagel5969]

this man is invited to all the stem parties

[@ivanmohlala6850]

Another method would be to calculate the intensity and then use the applied Inverse Square Law.

[@ProvidentialAdomah]

Can you help me with this question? Suppose an egg is dropped from 50m up to the sidewalk. The splat takes 0.05s. Nearly all the gravitational potential energy the egg had originally is converted into thermal energy but a very small fraction goes into sound energy. Let's say this fraction is only 6.7582.10 to the power (-11). How loud is the splat heard from the point at which the egg was dropped

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Man I just love you

[@mdf1259]

5:55 The I formula ? Then why you are using sphere formula?

[@mollypete4270]

you're a hero.

[@haneengaming4259]

Thank you soo much

[@SirMorebs]

Helpful indeed. Just FYI, you forgot to square the (R1/R2). you left it out @9:57

[@williansampaio2988]

Thanks for all. I have a question for you. How can I to reference the last equation? Is it a reference book?

[@grateful2god-209]

The music in my church is extremely loud. Is the sound person miscalculating the acoustics formula?

[@anthonyjack8484]

not like encased in stone or aanything like that right?

[@leinyuymarie5570]

is log 10 not equal to 1?? thanks by the way

[@russellgronbach4880]

Bro just say if you go away from a speaker the decibel level will decrease and if you walk towards it then it will increase

[@nawinop4003]

I got it now thanks

[@neel1901]

Helped me in the exam

[@kerenhappuch5605]

when is attenuation given a negative sign

[@samhanifin643]

How the hell are you getting these answers. I've typed these exact equations into my calculator a bunch and have gotten almost every number but 7.6 as an answer

[@nicholasrowe7740]

Dawg sameeee

[@laithalshammary995]

THANK YOU

[@cristined.t4942]

Thanks alotttttt!!!

[@sidhnathmishra7129]

Are u doing bsc in physics?

[@Miningengineersguide]

What is the difference between point source and line source??

[@GroundBeef1]

a line source doenst expand in a shpere like the point does. so calculating the surface of a line source would need a different formula. though in reality line sources are pretty rare. they only occour close to the soundsource.

[@jeffreychavey4161]

The threshold of intensity must be much lower for dogs - hence they flip out when fireworks go off. The perceived sound levels are higher. Am I wrong?

[@machhindra07]

you're right

[@jillaloo5152]

What's the difference between total sound intensity and combined sound intensity level? Help please

[@ellali8417]

so if you got two sounds happening at the same time, you gon hear their intensity added up

[@theneverendingidea4779]

It's like mark whalberg is teaching me

[@elitnizmajici4790]

Thanks 👍

[@KIDpurplelean]

funny how i learn more here than at school... whats the point then going to school

[@sherwanphysics7097]

You can you (I/Io)=10^(change in B/10)

[@felix4U]

thank you

[@Musashahid-dm4vh]

Thanks....

[@yuvrajmhamunkar8117]

Why it is not given in our books

[@abedyumbya7694]

thanks

[@natte431]

Dont forget to like the vedio

[@etparadise7277]

tnx man

[@154-prashanthkadudula2]

Tq

[@cartninja6479]

Why dont I get the same result on my calculator

[@rileymenter6095]

Clutch equation

[@omonas9681]

Thx

[@fatboih1921]

why did he use 4πr^2 as amplitude?

[@aidenxokeefe]

This is the area of a sphere, not the amplitude

[@wapasela]

Great

[@thatomofolo452]

Wow 😮

[@joeybannana-w1i]

mfw the easiest math course my college offers assigns homework that is due 2 days before the final exam expects you to learn 2 years of algebra and apparently physics

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What's software plz

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Plz answer this

[@avr1z]

❤

[@alambanda4676]

Do you even make mistakes 🤒?

[@harshitarawat5400]

You guys haven't tried physics wallah yet?

[@PhilBushay]

I really wish he explained how he went from the 1x10^-12(10)^50/10 to 1x10^-7 w/m^2. Makes no sense.

[@Phenrex]

1x10^-12*1x10^50/10 50/10 = 5 10^-12*10^5 a^m*a^n = a^m+n 10^-12+5 = 10^-7

[@Mr.pressure]

Anyone doing this in 8th grade or just me😅

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[@mirajmiraj2610]

Its less useful more head ache...

[@easyben21]

quite poorly explained, i'd advise not just assuming the audiance knows how log works right off the bat.

[@bq1000bq]

Now you know why MOM told you not to skip school!

[@kmanalpha453]

well this is for a physics class, not basic algebra. Would you also like him to explain every other detail of the equation?

[@jjreddick377]

Thank you