Solution Problem 221 Mass Spectrometer

[@cocktail365]

I started watching your lectures. I’ve learned so much. I even bought your book. Thank you for being an inspiration Walter

[@lecturesbywalterlewin.they9259]

You are very welcome

[@NeverMetTheGuy]

Nobody can name another physics professor that is as as well known as Walker Lewin. It's pretty awesome that so many lectures were recorded.

[@lecturesbywalterlewin.they9259]

who is Walker Lewin?

[@L.NEVER.LOSES.]

@@lecturesbywalterlewin.they9259 XD

[@FEYNMANYKS]

😅😂😂

[@niriikendall7382]

Hello sir thanks for showing us how truly physics works ,I want to meet u one day u deserve and u owe my respect

[@lecturesbywalterlewin.they9259]

Always welcome

[@mrwhite-wc6rq]

Sir thank you sir ❤ because of you i fell in love with physics..and scored good marks in jee mains exam..Thank you sir..🙏❤️🎉

[@lecturesbywalterlewin.they9259]

Good 👍

[@ixtitan4939]

Sir you are the best teacher because of you i passed JEE mains exam and scored 720/720

[@lecturesbywalterlewin.they9259]

Congratulations!

[@yatharth.0601]

Jee mains is of 300 marks 😂😂

[@Earthtomoon201]

@@ixtitan4939 😂 Bhai kyu maje le raha h 😂 but he is really humble teacher ❤️🙌🏻

[@manojkm6513]

Are bhai kab jee 720 Marks ka hua😂😂😂😂

[@infinityshort3232]

U sit in other exam 😂😂😂

[@kaushilbhoir6420]

A retired scientist recommend this channel to me

[@AshirbadGharti]

MUCH LOVE FROM COUNTRY NEPAL ❤️🇳🇵

[@wowcooking564]

😊 how are you sir did you remember me 🇮🇳🇮🇳

[@AndyFwler]

Hello sir, I am preparing for IIT JEE in india, i really love the way you teach and you've helped me alot, thank you sir for teaching❤

[@lecturesbywalterlewin.they9259]

It's my pleasure

[@surendrakverma555]

Thanks Sir for the excellent explanation. Regards

[@lecturesbywalterlewin.they9259]

Thanks and welcome

[@wowcooking564]

Sir my name is MD Samir I always watch your video when you upload❤❤

[@lecturesbywalterlewin.they9259]

Keep watching!

[@MdZaid-of7yt]

Sir are u magician ?❤

[@lecturesbywalterlewin.they9259]

Yes 😊

[@MdZaid-of7yt]

@lecturesbywalterlewin.they9259 ohh the man himself thanks sir for showing magic through the tool called physics ❤️

[@L.NEVER.LOSES.]

morning professor...I had a doubt regarging the fermat's principle and wanted to watch your lecture of it I browsed for it but wasnt able to find it could you please tell me where can I find your lecture regd the same?

[@L.NEVER.LOSES.]

oh gosh I thought Keith was some 22 year old college guy silly me!

[@bindhyachalgupta5571]

So great Sir

[@VikrantSingh-t3d]

I wish I could get a chance to sit in your class it will really be honour for me

[@garfielddexter6224]

Thank you 😃👍

[@Trendy666]

Happy birthday in-advance Dear Proffesser Lewin

[@lecturesbywalterlewin.they9259]

thank you

[@swatipandey6055]

Sir i am indian and i am neet Student My question is how concentrate physics numericals And sir I don't have any numericals in physics, please reply sir And my second question is sir, what should I do to learn the most important physics? Please reply sir u are my 💎...🥹🥹🥹🥹🥹🥹

[@lecturesbywalterlewin.they9259]

practice

[@swatipandey6055]

​@@lecturesbywalterlewin.they9259sure sir but my question is how focused physics.. because u are god in physics.. please sir make one video full explanation in this topic ..1. how focused physics 2..What is the right way to understand Physics which I always remember 3.. How to do numerical and what should be its steps... Please sir I am very interested physics but....😢😢this reason I was so confused sir....🥹🥹 Please make one video this topic sir...☹️☹️🥹 I will wait for your reply, your student....🥹

[@Arhan-c3w]

​@@swatipandey6055 practice derivations, try to practice as much as possible

[@ShwetaNavik]

Hello sir, thank you so much I always waiting for your videos to learn some new ❤

[@lecturesbywalterlewin.they9259]

Glad to hear that

[@Acer123-p2z]

Sir im a 10 year old kid i have interest in physics and mathematics..and loving to solve them..sir i have a general question don't you feel tired since you are teaching from these many years..this is just a noraml question sir..if you feel anything bad im really sorry sir..

[@lecturesbywalterlewin.they9259]

I have been teaching physics starting at age 13 I wiil be 89 yr old next week

[@Earthtomoon201]

Sir do you know who am i ? I'm Rohan form india ❤ physics is my favourite subject ❤I know I will be the richest person one day blessed me sir ji ❤😀🙌🏻🤩❤️

[@lecturesbywalterlewin.they9259]

Best of luck

[@Earthtomoon201]

@lecturesbywalterlewin.they9259 ❤️✌🏻

[@korelgokce4008]

🤍💙❤🧡🖐💫

[@SarathE.V-x2i]

I really like physics, but I don't know how to become an Astrophysicist. I'm afraid of being an average student.

[@lecturesbywalterlewin.they9259]

average students should not become astrophysicists unless you get a PhD in astrophysics at a top University

[@SarathE.V-x2i]

@lecturesbywalterlewin.they9259 I'm ready to work hard. But I can't focus my studies, that makes me anxious. Please sir give me tips

[@lostcosmos]

8.02x - Lect 13 - Moving charges in B-fields, Cyclotrons, Mass Spectrometers, LHC: kzbin.info/www/bejne/qXXReGSAnb9lhJY

[@MUHAMMADIBRAHIM-p1q]

I AM FROM BANGLADESH 🇧🇩 .