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DoctorPhys
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Registrace 2. 06. 2008
These videos were initially developed from the college courses I taught at UNC Asheville. The "Light" and "Sound" courses are for the general student. "Theoretical Physics," "Electromagnetic Theory," "Modern Optics," and "General Relativity" are aimed at physics, mathematics, and engineering majors with at least two semesters of calculus and intro physics. Notes for some of these courses are being posted at either of the two links listed below under Links. I hope to add more during my retirement.
J2. Elastic Collision II
We derive the general equations for elastic collisions of two bodies in one dimension. We find formulas for the two final velocities of the masses in terms of their masses and initial velocities. We start out by writing down the formulas using symmetry and the result from our previous section where we considered the first body colliding with a second body intially at rest. Then we derive the formulas in detail for a workout in algebra, verifying our results. Finally, we apply our formulas to baseball where a bat swings to hit an incoming ball.
zhlédnutí: 118
Video
L12. Table of Moments of Inertia
zhlédnutí 207Před rokem
In summary for our chapter on moments of inertia we provide a table of the many results we have derived in this chapter. We add the case of the hollow thick cylindrical shell for our summary table.
L11. Moment of Inertia for a Cone
zhlédnutí 1,9KPřed rokem
The moment of inertia if first calculated where the axis is through the center of the cone lengthwise. We call this frist case the central long axis. The second case we consider is the moment of inertia where the cone's apex point is attached to the axis and the cone's length is perpendicular to the axis of rotation.
L10. Moment of Inertia for a Rectangle
zhlédnutí 95Před rokem
We calculate the moment of inertia of a door about one of its edges. This case can also be applied to the lid of a hope chest. We then calculate the moment of inertia of a revolving door. Finally we take the axis perpendicular to the rectangle and through the center of mass - the rotating table. The parallel axis thereom can be applied to obtain the moment of inertia about a corner of the table!
L09. Moment of Inertia for a Spherical Shell
zhlédnutí 1,4KPřed rokem
We calculate the moment of inertia of a spherical shell about its center of mass. Then we use the parallel axis theorem to calculate the moment of inertia about an edge - the hanging disco ball.
L08. Moment of Inertia for a Solid Sphere
zhlédnutí 77Před rokem
We first calculate the moment of inertia of a solid sphere about its center of mass. Calculus is used with an infinitesimal disk. Show applications in bowling and a pendulum with a ball as the bob.
L07. Moment of Inertia for a Pendulum
zhlédnutí 163Před rokem
We calculate the moment of inertia for the compound system of a pendulum. We need to consider the hanging rod or chain part and a disk attached at the end. We use our previous results for the rod and disk in conjunction with the pararallel axis theorem.
L06. The Cylinder
zhlédnutí 58Před rokem
We calculate the moments of inertial for a cylinder about different axes. First we consider the axis along the center lengthwise. We use our knowledge of the disk to assist us in our calculation. Then we consider the moment of inertia of the cylinder about its center where the long length of the cylinder is perpendicular to the axis. Then, we consider the moment of inertial about the edge with ...
L05. Moment of Inertial for a Disk
zhlédnutí 43Před rokem
We use calculus to calculate the moment of inertia for a disk spinning as a plate about its center. Then we calculate the moment of inertia about an edge. Then we proceed to calculate the moment of inertia of a spinning coin.
L04. Moment of Inertia for a Rod
zhlédnutí 58Před rokem
We first calculate the moment of inertia about its end using calculus. Then we calculate the moment of inertial about its center of mass. The parallel axis theorem is employed.
L03. Moment of Inertial for the Hoop
zhlédnutí 48Před rokem
We calculate the moment of inertial for a hoop about three different axes. 1. The moment of inertia about its center. You can imagine spokes with negligle mass from the rim to the center. 2. The moment of inertia swinging from an edge. 3. The moment of inertail of a spinning hoop.
L02. Two Powerful Theorems
zhlédnutí 63Před rokem
The Parallel Axis & Perpendicular Axis Theorems are derived in this video. These theorems allow us to calculate moments of inertial of mass distributions much more easily. The applications of these theorems with be found in later videos of this chapter.
L1. Moment of Inertia
zhlédnutí 150Před 2 lety
We review moment of inertia from the last chapter. We derive the integral formula for calculating moments of inertia, which formula we will use extensively in this chapter.
B3. The Slope of a Velocity vs Time Graph (New)
zhlédnutí 55Před 2 lety
We continue our discussion of acceleration as a change in velocity with respect to time. In this section we use numbers from a real-world example of an accelerating high-performance bike. The slope is calculated for two regions of the velocity vs time graph.
B2. Acceleration (New)
zhlédnutí 61Před 2 lety
A definition of acceleration is given and how the concept relates to a change in velocity. Both speed and acceleration are discussed in terms of changes. Speed, or velocity, is a change in position with respect to time. Acceleration is a change in velocity with respect to time. We only consider one-dimensional motion and use speed and velocity interchangeably. A connection is made with differen...
A5. The Three Types of Physical Quantities (New)
zhlédnutí 204Před 2 lety
A5. The Three Types of Physical Quantities (New)
L. Short Intro to Moments of Inertia Chapter
zhlédnutí 125Před 2 lety
L. Short Intro to Moments of Inertia Chapter
K5. Playground Merry-Go-Round Kinematics
zhlédnutí 270Před 2 lety
K5. Playground Merry-Go-Round Kinematics
K3. Centripetal and Tangential Acceleration
zhlédnutí 125Před 2 lety
K3. Centripetal and Tangential Acceleration
J8. Billiards: Collisions in Two Dimensions
zhlédnutí 139Před 2 lety
J8. Billiards: Collisions in Two Dimensions
this is great, thanks
M it worked and got 5
I subscribed to you on six different accounts to try to get you to 10k 😂 it didnt work, sorry
Thanks for your support. I believe I am up to 9,997 at this time.
Nice plot!
2pi/lambda(x)=k(x) and 2pi/lambda*v(t)=w
Thank you sooo much,
Dirac was guessing and tinkering and found something closer to truth than standard quantum mechanics. However, this is only an approximation to the true Hamiltonian.
You explained it so well, thank you!
Reflection of reflections
what if its not a constant speed but trying to find the acceleration
is Fx= + o r - ma
What I would do in that case is leave ma as is, i.e., do not set it to 0. Then, I would solve for the acceleration a.
Where are you?
Retired from UNC Asheville and still in the area.
Great channel
Kinda creepy
Outstanding
Thanks
Thanks so much for this video. I received a defective Kaleidoscope overseas (shipping dislodged the mirror inside. This helped me understand how to fix it.
🎉
Nice teaching
What effect would positive and negative ions have on the current generation?
If you change the sign of the charges, the effect will be reversed.
Dear Sir, this is absolutely brilliant. Thank you very much for the crystal clear explanation.
com'n keep it goin' doc
😮
Thanks for sharing the valuable knowledge.
Thanks. Extensive pdf notes are at doctorphys.com/
clear explanation. great tutorial.
Why isn’t the a squared as well ?
Go to doctorphys.com/ then Theoretical and then Chapter B for the pdf notes
@@DoctorPhys it wont open
I had to move my website. I will work on it tonight and tomorrow and hopefully get something up there for you. I will let you know when it is ready.
Seeing this while Dussehra
Conservation of Spatial Curvature: (Both Matter and Energy described as "Quanta" of Spatial Curvature. A string is revealed to be a twisted cord when viewed up close.) Is there an alternative interpretation of "Asymptotic Freedom"? What if Quarks are actually made up of twisted tubes which become physically entangled with two other twisted tubes to produce a proton? Instead of the Strong Force being mediated by the constant exchange of gluons, it would be mediated by the physical entanglement of these twisted tubes. When only two twisted tubules are entangled, a meson is produced which is unstable and rapidly unwinds (decays) into something else. A proton would be analogous to three twisted rubber bands becoming entangled and the "Quarks" would be the places where the tubes are tangled together. The behavior would be the same as rubber balls (representing the Quarks) connected with twisted rubber bands being separated from each other or placed closer together producing the exact same phenomenon as "Asymptotic Freedom" in protons and neutrons. The force would become greater as the balls are separated, but the force would become less if the balls were placed closer together. Therefore, the gluon is a synthetic particle (zero mass, zero charge) invented to explain the Strong Force. An artificial Christmas tree can hold the ornaments in place, but it is not a real tree. String Theory was not a waste of time, because Geometry is the key to Math and Physics. However, can we describe Standard Model interactions using only one extra spatial dimension? What did some of the old clockmakers use to store the energy to power the clock? Was it a string or was it a spring? What if we describe subatomic particles as spatial curvature, instead of trying to describe General Relativity as being mediated by particles? Fixing the Standard Model with more particles is like trying to mend a torn fishing net with small rubber balls, instead of a piece of twisted twine. Quantum Entangled Twisted Tubules: “We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct.” Neils Bohr (lecture on a theory of elementary particles given by Wolfgang Pauli in New York, c. 1957-8, in Scientific American vol. 199, no. 3, 1958) The following is meant to be a generalized framework for an extension of Kaluza-Klein Theory. Does it agree with some aspects of the “Twistor Theory” of Roger Penrose, and the work of Eric Weinstein on “Geometric Unity”, and the work of Dr. Lisa Randall on the possibility of one extra spatial dimension? During the early history of mankind, the twisting of fibers was used to produce thread, and this thread was used to produce fabrics. The twist of the thread is locked up within these fabrics. Is matter made up of twisted 3D-4D structures which store spatial curvature that we describe as “particles"? Are the twist cycles the "quanta" of Quantum Mechanics? When we draw a sine wave on a blackboard, we are representing spatial curvature. Does a photon transfer spatial curvature from one location to another? Wrap a piece of wire around a pencil and it can produce a 3D coil of wire, much like a spring. When viewed from the side it can look like a two-dimensional sine wave. You could coil the wire with either a right-hand twist, or with a left-hand twist. Could Planck's Constant be proportional to the twist cycles. A photon with a higher frequency has more energy. ( E=hf, More spatial curvature as the frequency increases = more Energy ). What if Quark/Gluons are actually made up of these twisted tubes which become entangled with other tubes to produce quarks where the tubes are entangled? (In the same way twisted electrical extension cords can become entangled.) Therefore, the gluons are a part of the quarks. Quarks cannot exist without gluons, and vice-versa. Mesons are made up of two entangled tubes (Quarks/Gluons), while protons and neutrons would be made up of three entangled tubes. (Quarks/Gluons) The "Color Charge" would be related to the XYZ coordinates (orientation) of entanglement. "Asymptotic Freedom", and "flux tubes" are logically based on this concept. The Dirac “belt trick” also reveals the concept of twist in the ½ spin of subatomic particles. If each twist cycle is proportional to h, we have identified the source of Quantum Mechanics as a consequence twist cycle geometry. Modern physicists say the Strong Force is mediated by a constant exchange of Gluons. The diagrams produced by some modern physicists actually represent the Strong Force like a spring connecting the two quarks. Asymptotic Freedom acts like real springs. Their drawing is actually more correct than their theory and matches perfectly to what I am saying in this model. You cannot separate the Gluons from the Quarks because they are a part of the same thing. The Quarks are the places where the Gluons are entangled with each other. Neutrinos would be made up of a twisted torus (like a twisted donut) within this model. The twist in the torus can either be Right-Hand or Left-Hand. Some twisted donuts can be larger than others, which can produce three different types of neutrinos. If a twisted tube winds up on one end and unwinds on the other end as it moves through space, this would help explain the “spin” of normal particles, and perhaps also the “Higgs Field”. However, if the end of the twisted tube joins to the other end of the twisted tube forming a twisted torus (neutrino), would this help explain “Parity Symmetry” violation in Beta Decay? Could the conversion of twist cycles to writhe cycles through the process of supercoiling help explain “neutrino oscillations”? Spatial curvature (mass) would be conserved, but the structure could change. ===================== Gravity is a result of a very small curvature imbalance within atoms. (This is why the force of gravity is so small.) Instead of attempting to explain matter as "particles", this concept attempts to explain matter more in the manner of our current understanding of the space-time curvature of gravity. If an electron has qualities of both a particle and a wave, it cannot be either one. It must be something else. Therefore, a "particle" is actually a structure which stores spatial curvature. Can an electron-positron pair (which are made up of opposite directions of twist) annihilate each other by unwinding into each other producing Gamma Ray photons? Does an electron travel through space like a threaded nut traveling down a threaded rod, with each twist cycle proportional to Planck’s Constant? Does it wind up on one end, while unwinding on the other end? Is this related to the Higgs field? Does this help explain the strange ½ spin of many subatomic particles? Does the 720 degree rotation of a 1/2 spin particle require at least one extra dimension? Alpha decay occurs when the two protons and two neutrons (which are bound together by entangled tubes), become un-entangled from the rest of the nucleons . Beta decay occurs when the tube of a down quark/gluon in a neutron becomes overtwisted and breaks producing a twisted torus (neutrino) and an up quark, and the ejected electron. The production of the torus may help explain the “Symmetry Violation” in Beta Decay, because one end of the broken tube section is connected to the other end of the tube produced, like a snake eating its tail. The phenomenon of Supercoiling involving twist and writhe cycles may reveal how overtwisted quarks can produce these new particles. The conversion of twists into writhes, and vice-versa, is an interesting process, which is also found in DNA molecules. Could the production of multiple writhe cycles help explain the three generations of quarks and neutrinos? If the twist cycles increase, the writhe cycles would also have a tendency to increase. Gamma photons are produced when a tube unwinds producing electromagnetic waves. ( Mass=1/Length ) The “Electric Charge” of electrons or positrons would be the result of one twist cycle being displayed at the 3D-4D surface interface of the particle. The physical entanglement of twisted tubes in quarks within protons and neutrons and mesons displays an overall external surface charge of an integer number. Because the neutrinos do not have open tube ends, (They are a twisted torus.) they have no overall electric charge. Within this model a black hole could represent a quantum of gravity, because it is one cycle of spatial gravitational curvature. Therefore, instead of a graviton being a subatomic particle it could be considered to be a black hole. The overall gravitational attraction would be caused by a very tiny curvature imbalance within atoms. In this model Alpha equals the compactification ratio within the twistor cone, which is approximately 1/137. 1= Hypertubule diameter at 4D interface 137= Cone’s larger end diameter at 3D interface where the photons are absorbed or emitted. The 4D twisted Hypertubule gets longer or shorter as twisting or untwisting occurs. (720 degrees per twist cycle.) How many neutrinos are left over from the Big Bang? They have a small mass, but they could be very large in number. Could this help explain Dark Matter? Why did Paul Dirac use the twist in a belt to help explain particle spin? Is Dirac’s belt trick related to this model? Is the “Quantum” unit based on twist cycles? I started out imagining a subatomic Einstein-Rosen Bridge whose internal surface is twisted with either a Right-Hand twist, or a Left-Hand twist producing a twisted 3D/4D membrane. This topological Soliton model grew out of that simple idea. I was also trying to imagine a way to stuff the curvature of a 3 D sine wave into subatomic particles. .
Conservation of Spatial Curvature (Both Matter and Energy described as "Quanta" of Spatial Curvature. A string is revealed to be a twisted cord when viewed up close.) Is there an alternative interpretation of "Asymptotic Freedom"? What if Quarks are actually made up of twisted tubes which become physically entangled with two other twisted tubes to produce a proton? Instead of the Strong Force being mediated by the constant exchange of gluons, it would be mediated by the physical entanglement of these twisted tubes. When only two twisted tubules are entangled, a meson is produced which is unstable and rapidly unwinds (decays) into something else. A proton would be analogous to three twisted rubber bands becoming entangled and the "Quarks" would be the places where the tubes are tangled together. The behavior would be the same as rubber balls (representing the Quarks) connected with twisted rubber bands being separated from each other or placed closer together producing the exact same phenomenon as "Asymptotic Freedom" in protons and neutrons. The force would become greater as the balls are separated, but the force would become less if the balls were placed closer together. Therefore, the gluon is a synthetic particle (zero mass, zero charge) invented to explain the Strong Force. An artificial Christmas tree can hold the ornaments in place, but it is not a real tree. String Theory was not a waste of time, because Geometry is the key to Math and Physics. However, can we describe Standard Model interactions using only one extra spatial dimension? What did some of the old clockmakers use to store the energy to power the clock? Was it a string or was it a spring? What if we describe subatomic particles as spatial curvature, instead of trying to describe General Relativity as being mediated by particles? Fixing the Standard Model with more particles is like trying to mend a torn fishing net with small rubber balls, instead of a piece of twisted twine. Quantum Entangled Twisted Tubules: “We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct.” Neils Bohr (lecture on a theory of elementary particles given by Wolfgang Pauli in New York, c. 1957-8, in Scientific American vol. 199, no. 3, 1958) The following is meant to be a generalized framework for an extension of Kaluza-Klein Theory. Does it agree with some aspects of the “Twistor Theory” of Roger Penrose, and the work of Eric Weinstein on “Geometric Unity”, and the work of Dr. Lisa Randall on the possibility of one extra spatial dimension? During the early history of mankind, the twisting of fibers was used to produce thread, and this thread was used to produce fabrics. The twist of the thread is locked up within these fabrics. Is matter made up of twisted 3D-4D structures which store spatial curvature that we describe as “particles"? Are the twist cycles the "quanta" of Quantum Mechanics? When we draw a sine wave on a blackboard, we are representing spatial curvature. Does a photon transfer spatial curvature from one location to another? Wrap a piece of wire around a pencil and it can produce a 3D coil of wire, much like a spring. When viewed from the side it can look like a two-dimensional sine wave. You could coil the wire with either a right-hand twist, or with a left-hand twist. Could Planck's Constant be proportional to the twist cycles. A photon with a higher frequency has more energy. ( E=hf, More spatial curvature as the frequency increases = more Energy ). What if Quark/Gluons are actually made up of these twisted tubes which become entangled with other tubes to produce quarks where the tubes are entangled? (In the same way twisted electrical extension cords can become entangled.) Therefore, the gluons are a part of the quarks. Quarks cannot exist without gluons, and vice-versa. Mesons are made up of two entangled tubes (Quarks/Gluons), while protons and neutrons would be made up of three entangled tubes. (Quarks/Gluons) The "Color Charge" would be related to the XYZ coordinates (orientation) of entanglement. "Asymptotic Freedom", and "flux tubes" are logically based on this concept. The Dirac “belt trick” also reveals the concept of twist in the ½ spin of subatomic particles. If each twist cycle is proportional to h, we have identified the source of Quantum Mechanics as a consequence twist cycle geometry. Modern physicists say the Strong Force is mediated by a constant exchange of Gluons. The diagrams produced by some modern physicists actually represent the Strong Force like a spring connecting the two quarks. Asymptotic Freedom acts like real springs. Their drawing is actually more correct than their theory and matches perfectly to what I am saying in this model. You cannot separate the Gluons from the Quarks because they are a part of the same thing. The Quarks are the places where the Gluons are entangled with each other. Neutrinos would be made up of a twisted torus (like a twisted donut) within this model. The twist in the torus can either be Right-Hand or Left-Hand. Some twisted donuts can be larger than others, which can produce three different types of neutrinos. If a twisted tube winds up on one end and unwinds on the other end as it moves through space, this would help explain the “spin” of normal particles, and perhaps also the “Higgs Field”. However, if the end of the twisted tube joins to the other end of the twisted tube forming a twisted torus (neutrino), would this help explain “Parity Symmetry” violation in Beta Decay? Could the conversion of twist cycles to writhe cycles through the process of supercoiling help explain “neutrino oscillations”? Spatial curvature (mass) would be conserved, but the structure could change. ===================== Gravity is a result of a very small curvature imbalance within atoms. (This is why the force of gravity is so small.) Instead of attempting to explain matter as "particles", this concept attempts to explain matter more in the manner of our current understanding of the space-time curvature of gravity. If an electron has qualities of both a particle and a wave, it cannot be either one. It must be something else. Therefore, a "particle" is actually a structure which stores spatial curvature. Can an electron-positron pair (which are made up of opposite directions of twist) annihilate each other by unwinding into each other producing Gamma Ray photons? Does an electron travel through space like a threaded nut traveling down a threaded rod, with each twist cycle proportional to Planck’s Constant? Does it wind up on one end, while unwinding on the other end? Is this related to the Higgs field? Does this help explain the strange ½ spin of many subatomic particles? Does the 720 degree rotation of a 1/2 spin particle require at least one extra dimension? Alpha decay occurs when the two protons and two neutrons (which are bound together by entangled tubes), become un-entangled from the rest of the nucleons . Beta decay occurs when the tube of a down quark/gluon in a neutron becomes overtwisted and breaks producing a twisted torus (neutrino) and an up quark, and the ejected electron. The production of the torus may help explain the “Symmetry Violation” in Beta Decay, because one end of the broken tube section is connected to the other end of the tube produced, like a snake eating its tail. The phenomenon of Supercoiling involving twist and writhe cycles may reveal how overtwisted quarks can produce these new particles. The conversion of twists into writhes, and vice-versa, is an interesting process, which is also found in DNA molecules. Could the production of multiple writhe cycles help explain the three generations of quarks and neutrinos? If the twist cycles increase, the writhe cycles would also have a tendency to increase. Gamma photons are produced when a tube unwinds producing electromagnetic waves. ( Mass=1/Length ) The “Electric Charge” of electrons or positrons would be the result of one twist cycle being displayed at the 3D-4D surface interface of the particle. The physical entanglement of twisted tubes in quarks within protons and neutrons and mesons displays an overall external surface charge of an integer number. Because the neutrinos do not have open tube ends, (They are a twisted torus.) they have no overall electric charge. Within this model a black hole could represent a quantum of gravity, because it is one cycle of spatial gravitational curvature. Therefore, instead of a graviton being a subatomic particle it could be considered to be a black hole. The overall gravitational attraction would be caused by a very tiny curvature imbalance within atoms. In this model Alpha equals the compactification ratio within the twistor cone, which is approximately 1/137. 1= Hypertubule diameter at 4D interface 137= Cone’s larger end diameter at 3D interface where the photons are absorbed or emitted. The 4D twisted Hypertubule gets longer or shorter as twisting or untwisting occurs. (720 degrees per twist cycle.) How many neutrinos are left over from the Big Bang? They have a small mass, but they could be very large in number. Could this help explain Dark Matter? Why did Paul Dirac use the twist in a belt to help explain particle spin? Is Dirac’s belt trick related to this model? Is the “Quantum” unit based on twist cycles? I started out imagining a subatomic Einstein-Rosen Bridge whose internal surface is twisted with either a Right-Hand twist, or a Left-Hand twist producing a twisted 3D/4D membrane. This topological Soliton model grew out of that simple idea. I was also trying to imagine a way to stuff the curvature of a 3 D sine wave into subatomic particles. .
how did this happen?
It is a nice trick.
at 3:35 is this x(t) = xbar(t) + eta(x) same as x(t) = xbar(t) + eta(x(t))? well if i add some small amplitudes in some functions, i do this is x(t) = xbar(t) + eta(t) and not eta(x). the rest lecture is just math, but i still dont get how to establish eta() correctly. example f(t) = t + 0.00001*sin(3t) is understandable but f(t) = t + 0.00001*sin [ 3* f(t) +0.00003* f(t) ] not this one.
helpful in quantum mechanics
Very good explanations covering essential matrix algebra. The explanation of "Special Groups" of matices is most appreciated. Surprised that there are so few "likes".
I didn’t realize I was alive when he was alive. Just one year when he passed.
Pseudo-differential operators?
During his era, his intuition in discovering the Dirac equation was truly brilliant.
las dos formulas son iguales solo cambia v y c y da lo mismo sustituir v por c que c por v P=m*c=h/λ Copmtom P=m*v=h/λ Broglie E=m*c^2=h*fCopmton E=m*v^2=h*f Broglie Si no existiera ninguna restricciòn de velocidad relativista para las particulas con masa, obtendriamos un coeficiente de correlacion, entre c y v igual a 1, ya que ambas ecuaciones son identicas. Solo cambia C y V Pero que pasa si aplicaramos esta ecuaciòn a la inversa para particulas sin masa como un fotòn. Se sabe que la luz cuando atraviesa un medio de mayor densidad, su velocidad se vera reducida, pero su frecuencia(hf) permanecera igual, esto repercutira en su longitud de onda que aumentara proporcionalmente una cantidad.λ=v/f=λdB=h/mv Podemos representar c como la velocidad de la luz en el vacio y v como la velocidad de la luz en un medio de mayor densidad. f=es la costante=hipotenusa V= es la variable=seno o el coseno V/f=c.opusto/hiponusa=seno=sin⁻¹(θ) λ=v/f es la longitud de onda de la luz cuando pasa a un medio de mayor densidad. λ=V/f=225000000/3,8178733E50= 5,893333E−43 λdB= h/mv=((6,63×10^(−34))÷(225000000×5)= 5,893333E−43 f=((5×225000000^2)÷((6,63×10^(−34))= 3,8178733E50 Creo que la ecuacion de klein gordon describe muy bien la realidad constantemente se ha dicho que esta ecuacion no era valida por presentar energias y probabilidades negativas. La primera pregunta inmediata, es cual fue el verdadero motivo para que esta esta ecuaciòn fuera desechada y cuya densidad y corriente de probabilidad solo se utiliza para cargas eléctricas. Pero nada que ver con la realidad. Esas energias y probabilidades negativas son parte de nuestra realidad. Toda raiz cuadrada lleva un signo ± delante. Los matematicos nunca han sabido como interpretar esto interpretando los resultados negativos como adsurdos o nulos.Y todo numero imaginario al elevarlo al cuadrado se convierte en un nùmero real negativo -x ò i^2=-1 y al elevarlo nuevamente al cuadrado se convierte en un numero real del mismo signo x, i^4=1. i^0=1, i^1=i, i^2=-1, i^3=-i, i^4=1 i^5=i, i^6=-1, i^7=-i, i^8=1.… este proceso es cicloco se repite una y otra vez. Somos luzomos luz. es.quora.com/profile/Jose-1004/El-primer-problema-que-se-planteo-dirac-fue-cuanto-tiene-que-valer-%CE%B1-y-%CE%B2-para-que-esto-sea-verdad-E-x%C2%B2-y%C2%B2-%CE%B1x-%CE%B2y
Your third filter looks like a 380-450nm violet filter.
Yes. Violet is a neat color. I had to use a magenta filter that passes blues and reds so that I could get a red by color subtraction with a yellow filter that passes greens and reds.
How we write -iħ∆ as (ħ/i)*∆?
multiply by i/i will do the trick. Since i/i = 1, you do not change the value. But when i multiplies i you get the -1.
ahahahaha, şaka gibi
Nothing like the original hp15c, the New versions are better for his high speed calculations (about 100x), What hurry are you in this beautiful world?
Anyone out there in the void wanna educate me. I'm probably going to hit Khan Academy Physics right quick and Chatgpt for my education. But this is exactly the sort of stuff I'm curious about right now. More specifically unit analysis and the polar graphs to some degree. This exampe in the video is a polar graph, so you got a clean set of rules for integration in 2d and apparently 3d. I like it. I'm looking at 2d graphs where the unit analysis of the area under the curve seems to be x*y (Force * m=Nm, m/s^2 * s=m/s). So Chat gpt tells me there are 4 kinds of graphs for 3d where x and y are independent and z is dependent. For the unit type of the volume under the curve I would just multiply the three axis units together? I just added this from Chatgpt, it's nothing. Just examples I guess. Electric Field: In electromagnetism, the electric field is a vector quantity that can be represented by a three-dimensional graph. The x and y axes can represent spatial dimensions, while the z axis represents the magnitude or strength of the electric field at each point in space. (A/m)*m*m=A*m Magnetic Field: Similar to the electric field, the magnetic field is another vector quantity that can be represented in a three-dimensional graph. The x and y axes represent spatial dimensions, and the z axis represents the magnitude or strength of the magnetic field at each point. (A/m)*m*m=A*m Wave Propagation: Graphs depicting the propagation of waves, such as sound waves or electromagnetic waves, often use three dimensions. The x and y axes represent spatial dimensions, while the z axis can represent the amplitude, intensity, or other characteristics of the wave at each point in space and time. J/s·m^2*m*m=J/s·m^4 or W/m^2*m*m= W Potential Energy Landscape: In various physical systems, potential energy landscapes can be visualized using three-dimensional graphs. The x and y axes represent spatial dimensions, while the z axis represents the potential energy of the system as a function of the positions in space. J*m*m=J*m^2, or (kg⋅m^2/s^2)*m*m=kg⋅m^4/s^2
bur but blue is a primary color!,!!!
The artist's BLUE has some green in it. So in class I say that the Artist's BLUE is a CYAN. And the artist's RED is a magenta. In software when one works with color filters doing subtraction, they are careful to list these as cyan, magenta, and yellow. But I tell my students to respect the artists. Just remember that the artist's blue is a cyan.
Easy trick. Where you put your finger when flipping…
The book is a trick book and when you hold it in your hands, you can see what will work (bottom, middle, and top) due to shaved edges.
Thanks alot sir.. sir pls do this experiment with cyan yellow magenta light . What color output plzz😢😊l
Use this model to figure out different room lights. Take white as W = R + G + B and the Cyan filter passing B + G, Magenta passing B + R, and Yellow passing G + R. If you start with cyan light, you start with B + G. Then take this cyan through the filters using the passing rules and you can figure everything out.
Dear Professor In 2D, If there are two balls colliding, how do I calculate the angle produced by the collision, given that the resulting angle of both balls is unknown? That is, if ball 1 goes at coordinate (x1,y1) with y1=0 and ball 2 which is at rest, is at coordinate (x2,y2) with y2 non-zero, but close enough to zero for both balls to collide. Thank you very much
I hope I have made myself clear
For that Juan, I would go to my main page www.youtube.com/@DoctorPhys and then choose the Physics I with Calculus and then scroll down to the video on collisions in two dimensions. See what that does.
wow this was magic
1:15 sir you are wrong, because at 60° 5 images should be formed according to this formula (360/Theta) - 1 = no. Of images Here, (360/60) -1 = 5
The formula I am using is for the total number of things rather than the number of images: 1 real object and the rest are images as stated in the video.
@@DrMichaelRuiz ok sir, now I got it, I'm not much into science and I'm only a 8th standard student I think I'll be forgiven for my foolishness and recklessness. I really apologize for my misunderstanding.
@@TrulyAHustler dude its ok
So refreshing to see someone acknowledge and apologize for their mistake, I take my hat off to you 👏
good video, professor
Juan, I just uploaded a new J2 Elastic Collisions II with the sound fixed. Thanks for letting me know about that video.
@@DoctorPhys I am very grateful to you
Thanks. I am also very grateful to you. Let me know if you find a problem anywhere else.
Great physics videos, DoctorpPhys! Will you make any on E&M?
Refath, I have no intro E&M videos at this time.
@@DrMichaelRuiz I see, thank you anyway
Quantum mechanics is next on my list. I will be putting that one up next and also finish the intro mechanics course.
@@DrMichaelRuiz That's great. I have a QM course coming up in the Fall. Thank you.
운동량을 0으로 놓고 해석할 경우, 돌파구에 대한 힌트를 얻을 수 있는 것 같다. 영감을 주는 영상.