3 ай бұрын
3 ай бұрын
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Жыл бұрын
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@748Apollo 3 күн бұрын
thanks fr! its only one week away from my exam and I just forgot about this! thanks a lot for helping me remember this point, have a blessed day!
@748Apollo 3 күн бұрын
really hope i can get an a*, rn the score of the passpapers I've done are only few points above the a* line
@dr.piercesphysicsmath9071 2 күн бұрын
Go get it! Hoping to see your hard work pay off. It usually does.
@RoccoDiMonda 9 күн бұрын
Very helpful resource, surprised you don't have more followers! When you look at rescources on the topic (at least what I have looked in) they mainly just state the equation. It is particularly refreshing to have an understanding behind it, and now I can apply it to non-uniform objects!
@dr.piercesphysicsmath9071 4 күн бұрын
I appreciate this! Very happy that the video was helpful. 👍
@Guttor 13 күн бұрын
This video helped me thank you
@dr.piercesphysicsmath9071 12 күн бұрын
Terrific
@JStormy 17 күн бұрын
There are two kinds of smart people: those who take simple things and make them sound complicated, and those who take complicated things and make them sound simple. This is the second.
@dr.piercesphysicsmath9071 17 күн бұрын
I sure appreciate the feedback. Trigonometry and handling vectors got a lot easier for me when I started thinking of things like this, so I tried to pass the idea along to others.
@saitcam9973 18 күн бұрын
5:30 horizontal formula: Must be -mu*N*cos(teta), why you did positive not negative sir?
@saitcam9973 18 күн бұрын
if accelaration towards center the friction must be opposite direction?
@dr.piercesphysicsmath9071 17 күн бұрын
A component of friction and a component of normal force point toward the center. There are no forces with components toward the outside of the curve.
@physics.ntb0 18 күн бұрын
ok do bro
@dr.piercesphysicsmath9071 11 күн бұрын
Thats how we do what we do
@pleurote6988 19 күн бұрын
I can't even explain how long I have searched for this video. You are a life saver!
@dr.piercesphysicsmath9071 19 күн бұрын
Terrific! I hope it was helpful. Thanks for the note; it was fun to read.
@sameershahzad249 25 күн бұрын
Thanks Sir
@dr.piercesphysicsmath9071 23 күн бұрын
You are very welcome. I hope it was helpful.
@robertbrandywine Ай бұрын
There should be a way to do this in writing. Like, if A is in the clockwise direction of B, but the angle between the two is less than 180 degrees, then C will be out of the page or board.
@dr.piercesphysicsmath9071 23 күн бұрын
Agreed. Of course, clockwise or counterclockwise (even which way a clock goes) depends upon where you standing, so that definitely adds some awkwardness. I do like your idea and your mentioning of the 180 degree condition.
@samced6780 Ай бұрын
THANK YOUUUU
@dr.piercesphysicsmath9071 23 күн бұрын
Absolutely! I hope it was useful.
@ryanmcdonald2027 Ай бұрын
is the last sound wave type and the last maths calculus equation to do with creating a triangle wave ?
@thenormieguy2622 Ай бұрын
can you explain the thought process behind deciding what shape of elemental mass to take? in some derivations i see elemental semi circular rings instead of the block like mass you took. other than that, you explained everything really well. thank you.
@Asclepias7 Ай бұрын
Thank you for the explanation! I actually needed to understand this for cutting wood pieces with a chainsaw! What made it click for me was compression = squeezing together and tension = pulling apart.
@markandrus8879 Ай бұрын
Even & Odd = sawtooth Odd = square Even = ??
@evaD69Dave 2 ай бұрын
The video I was looking for. Thanks
@dr.piercesphysicsmath9071 Ай бұрын
Great! I hope it was useful.
@gina2190 2 ай бұрын
The council housing have just put new smoke alarms onto my place in uk today but I felt suspicious a bit uneasy. So should they be ripped out as dangerous or covered in some way ? Great video but I was left wondering what to do a little bit . Thanks
@dr.piercesphysicsmath9071 2 ай бұрын
No, they are safe. It is such a low level and the alpha particles are blocked, certainly by the metal and plastic casing and even by a few inches of air. I have a handful of them in my house and feel safer with them there as smoke detectors. They are designed to not be radiation hazards, even though they use a little radioactivity to operate.
@bipulraj8621 2 ай бұрын
wao..great👍 visualisation of motoring action is really interesting
@dr.piercesphysicsmath9071 2 ай бұрын
Excellent! Thank you for the kind note.
@colinmccarthy6206 2 ай бұрын
Id be careful mixing angular moment with the systems angular momentum vector... i wasted countless hours deciphering this, afterwards I was met with another question as to how the system maintained rotational and axle equilibrium if the torque of mg • displacement is adding force downward on the system? Rotational relativity has been explained regarding two angular momentum vectors, but nothing on what counter weights the gravitational force? Perhaps i could be intuitive... but i could also use the help! Kindest regards.
@helloitsdp 2 ай бұрын
Quick question can we use the first method of finding possible roots and plug each one into the equation to find all the roots or does it only work once?
@dr.piercesphysicsmath9071 2 ай бұрын
It can find more than one rational root if the polynomial has more than one rational root. It will not find irrational or complex roots. Another strategy: if you find a rational root r, then (x-r) is a factor. You can divide the original polynomial by (x-r) and then work on finding the roots of the quotient, which will be one degree smaller (easier to solve!) than the original polynomial.
@helloitsdp 2 ай бұрын
Thank you so much for this. We payed my summer school teacher 3k dollars to help me with algebra 2. She teaches us very hard methods and you just solved this problem for me in the easiest possible way. Thank you so much.
@vinukionethra 2 ай бұрын
Tank you so much sir, ❤❤❤
@user-mx7fp1zm9s 2 ай бұрын
You did what all my schooling teachers couldn't do
@dr.piercesphysicsmath9071 2 ай бұрын
I love it. My favorite comment ever. I'm very happy it was helpful.
@HowardPilyo 3 ай бұрын
I really like the explanation ❤
@lighte6247 3 ай бұрын
Thanks it helped me so much!!
@dr.piercesphysicsmath9071 2 ай бұрын
Terrific! 👍
@garfieldyates7405 3 ай бұрын
can you explain why you drew the 2nd vector like that? Isn't that counterintuitive to how its originally positioned?
@OkupantTuriMutiCiet 3 ай бұрын
Why use for example sin(πnx) instead of sin(nx), why is the π needed?
@dr.piercesphysicsmath9071 3 ай бұрын
Just for style. I like it because a generic sine wave can be written as A sin ( [2pi/T ]x) or A sin( [2pi f] x) in which T is the period or f is the frequency (# of cycles per horizontal unit). Indeed,, you definitely don't have to do it the way I chose to.
@VilexerCreators 3 ай бұрын
This is a type of content for which i pays my internet bill for.THANKS a lot Dr.pierce
@jonathanvicinzino516 3 ай бұрын
After a long time i finally FULLY got it! thank you 😊
@dr.piercesphysicsmath9071 3 ай бұрын
Let's go! Terrific.
@lhoucinesaid3956 3 ай бұрын
Thank you ! Very well illustrated !
@dr.piercesphysicsmath9071 3 ай бұрын
I appreciate this! 👍
@ross9580 3 ай бұрын
Is the Americium a solid or an encapsulated powder? Without thinking I blasted a malfunctioning one with compressed air and have been concerned since
@dr.piercesphysicsmath9071 3 ай бұрын
It's solid. That should not be a problem. If I were in your situation, I would not worry at all. Nevertheless, it is best with all radioactive materials to minimize exposure. This is mainly an alpha emitter, but does have a decay product that is itself a beta emitter. I don't make a habit of playing around with the material, but your situation does not wound worrisome to me.
@ross9580 3 ай бұрын
@@dr.piercesphysicsmath9071 Thanks for your reply. The detector is over 30 years old. The dust had a notably different smell, perhaps from being ionized? It's what made me realize afterwards it was probably a very bad idea. Would the dust I inhaled retain alpha or beta radioactivity for any length of time?
@BuzzaB77 3 ай бұрын
Is the program in the video available ?
@dr.piercesphysicsmath9071 3 ай бұрын
It's just the Desmos graphing calculator. A Google search will pull it up pretty quickly.
@BuzzaB77 3 ай бұрын
@@dr.piercesphysicsmath9071 brilliant thank you for getting back to me. Great video helped a lot.
@lexigoyette5631 3 ай бұрын
Hey! What formula would you use to find tension of the strong for the first example?
@dr.piercesphysicsmath9071 3 ай бұрын
Once you have "a" you can plug that back into T = m_1 a. Or you can plutlg it into m_2 g - T = m_2 a
@lexigoyette5631 3 ай бұрын
@@dr.piercesphysicsmath9071 Thanks!
@huseyinsencerarik 3 ай бұрын
Wow as a Turkish student, it even worked for me to understand the reason behind this principle. Thnaks sir
@dr.piercesphysicsmath9071 3 ай бұрын
Excellent! Hello from California.
@loma-torrente 4 ай бұрын
Thank you for the vid!!
@dr.piercesphysicsmath9071 4 ай бұрын
You are welcome! I hope it helped.
@AliEgemenB 4 ай бұрын
Man I love you. Still failed Physics II because of how unintuitive it is but thanks. This was awesome.
@dr.piercesphysicsmath9071 4 ай бұрын
I appreciate it! Hopefully you get some good news in July about AP2. Good luck!
@namangoyal1297 4 ай бұрын
Such a nice explanation, I was looking for the conversion b/w various systems and this video was perfect for clearing my doubts regarding elemental analysis in different coordinate systems. Thank You!!
@cozyeng 4 ай бұрын
THANK YOUUUUUUUUUUUUUUUUUUU THANK YOU SO MUCH YOU SAVED MY ORAL PHYSICS PRESENTATION !!!! it was about the physics behind synthetic soundwaves !
@dr.piercesphysicsmath9071 3 ай бұрын
Terrific! You chose an interesting topic. I'll bet people learned some good stuff from your presentation.
@Momo252-me9hy 4 ай бұрын
top 👏
@TravoNtour 4 ай бұрын
This means it might be possible to generate current from the rotation of car wheels then use it to power the car.
@dr.piercesphysicsmath9071 4 ай бұрын
True, but the resistance of the circuit would lead to some magnetic drag on the wheels. Good during braking, though! "Regenerative braking."
@priscillawrites6685 4 ай бұрын
I’d like to take mp3s of my vocal music (Brahms, Schumann, Schubert, Wolf, Mozart, Bach) - translate them into light frequencies, then transmit my music into the universe. Perhaps to be decoded by other intelligent beings. Perhaps to travel 3.8 billion years to the big bang. Is this possible?
@dr.piercesphysicsmath9071 3 ай бұрын
Definitely. On some level, this is already done with radio waves that are already sent out. The signal could also be piggybacked on a laser intensity and be sent out that way. I've been thinking of having a student try using a laser to transmit music down the hallway this way.
@matt1714 4 ай бұрын
Thank you so much for the great video!!
@dr.piercesphysicsmath9071 4 ай бұрын
You're very welcome. Thanks for the feedback. 👍
@jojotag5344 4 ай бұрын
I wasn't understanding anything until you showed us (-b/2a), then everything made sense XD thank you!
@dr.piercesphysicsmath9071 4 ай бұрын
Excellent. 👍
@rubinabibi9339 4 ай бұрын
Thank you sir
@karangupta120 4 ай бұрын
Thats a really cool way to explain the concept, thanks a ton.
@dr.piercesphysicsmath9071 4 ай бұрын
I appreciate your feedback. Hopefully the video helps a few folks!
@Apasadiamond 4 ай бұрын
Very very good vid helped me with my exam greatly deserves more views and subs for sure!
@dr.piercesphysicsmath9071 4 ай бұрын
I'm happy to read that this helped! Excellent. Thank you for the kind note.
@houssamdeboucha7284 5 ай бұрын
the volume of sphere is difined by [(4/3)*Pi*r3]??
@dr.piercesphysicsmath9071 5 ай бұрын
Yes, it is. In this problem, we did not just multiply charge density by the total volume [ (4/3)pi Rcubed] because the charge density changes with radius. Instead we find a little bit of charge dQ = charge density * dV in which the charge density is given as r^2 and dV = 4pi r^2 dr and then add up all of the little bits of charge by integrating r^2 * 4pi r^2 dr
@Praa414 5 ай бұрын
Professional explanation
@dr.piercesphysicsmath9071 5 ай бұрын
I appreciate the feedback! Hopefully the video will help a few folks.
@AugustineJBenson 5 ай бұрын
Thank you, Sir. Very clear explanation!!!!.
@dr.piercesphysicsmath9071 5 ай бұрын
Excellent! You are welcome.
@pain4743 5 ай бұрын
Thank you
@dr.piercesphysicsmath9071 5 ай бұрын
You are welcome! 👍
@kevin-jay-chang 5 ай бұрын
Nice nose dude 👍
@dr.piercesphysicsmath9071 5 ай бұрын
😀 yeah, the cylindrical section was a little far to reach without getting in the way. 👃 🤥 😀