Without using E2 = p2c2 + m2c4, prove that the 4-momentum of a photon is a...
Without using E2 = p2c2 + m2c4, prove that the 4-momentum of a photon is a null vector.
Homework Answers
Because the photon definitely has energy, it must have a
four-momentum vector, but it must be defined differently from
mU because the proper time, τ
, along its worldline is
zero.
Add Answer to:
Without using E2 = p2c2 +
m2c4, prove that the 4-momentum of a photon
is a...
in the What is the momentum, in the center of mass reference frame, of a reaction...
in the What is the momentum, in the center of mass reference frame, of a reaction +p+Kº+A if the has an energy E= 3 GeV in the laboratory reference frame? Notice that m.,- = 139.6 MeV/ca, mp = 938.3 MeV/c. (Tip: in the laboratory reference frame, the proton is at rest. In the center of mass reference frame, ộp = (P2c2 + m 4,P) and Pa- = (1pe2 +m-c, -D)) A photon with energy E = 10 MeV collides elastically...
4. (3 points) A photon has wavelength 450.0 nm. a) What is the momentum of the photon? b) Find the speed of a proto...
4. (3 points) A photon has wavelength 450.0 nm. a) What is the momentum of the photon? b) Find the speed of a proton with the same momentum (from part a) Find the speed of a golf ball with the same momentum (from part a), if the mass of the golf ball is 45.9 g. c) What is the wavelength of a golf ball moving with speed 15 m/s? d)
3. (4 points) Photon collision! A photon with energy 2m hits a particle of mass m...
3. (4 points) Photon collision! A photon with energy 2m hits a particle of mass m at rest. The photon back-scatters from this intcraction (that is, it movics in the opposite dircction) white the particle moves forward to conscrve momentum. Find the back-scattered photon's encrgy E and the particle's speed |]. (algebraically, not using cnergy momentum diagrams)
3. Using position and momentum operators prove that <xp> = -<px> = ihbar/2 for the infinite...
3. Using position and momentum operators prove that <xp>
= -<px> = ihbar/2 for the infinite potential energy well
wavefunctions.
4. Consider two operators defined as A+ and A-
any help with 3 and 4 would be greatly appreciated!!!
3. Using position and momentum operators prove that (xp) = -(p.c) = for the infinite potential energy well wavefunctions. 4. Consider two operators defined as A+ = a (- + oʻx) and A- = a (-de-a²x), where a = w and...
4) Prove the Lorentz transformation relations for energy and momentum.
4) Prove the Lorentz transformation relations for energy and momentum.
Quantum Physics - Photon Momentum - Photon Scattering - Compton Effect 2 Photon Scattering by Electron...
Quantum Physics - Photon Momentum - Photon Scattering - Compton Effect 2 Photon Scattering by Electron - Compton Effect E = h' Ehf h (photon's momentum) 2 Before KW 2 After h 2-1=(1-cos) (Compton effect) m. = 2.43x10- Before After KEE E is between 0° and 180° The Planck constant is 6.626x10^-34 J s. The wavelength of the incident X-ray photon is unknown. The incident photon collides with the stationary electron. After the collision, the scattered photon's motion makes an...
Using momentum and energy conservation laws prove that in a Newton's cradle a single ball always...
Using momentum and energy conservation laws prove that in a Newton's cradle a single ball always transfers all of its momentum to the next one.
Quantum Physics - Photon Momentum - Photon Scattering - Compton Effect 1 Photon Scattering by Electron...
Quantum Physics - Photon Momentum - Photon Scattering - Compton Effect 1 Photon Scattering by Electron - Compton Effect Ehf Ehr" P (photon's momentum) Before X After 2-X A Before I-cos8) (Compton effect) "=2.43 x 10-12 . Affer KE - E is between 0° and 180° The Planck constant is 6.626x10^-34 J s. The wavelength of the incident X-ray photon is 0.570 nm, 1nm = 10-ºm. The incident photon collides with the stationary electron. After the collision, the scattered photon's...
PHYS101 21 . a) Write down expressions for the total energy, E, and the momentum, p,...
PHYS101 21 . a) Write down expressions for the total energy, E, and the momentum, p, of a particle. Express your answers in terms of the rest mass, m, and velocity, u, of the particle. 4 marks) Using these expressions, show that E2-ap of the momentum. m2ct, where p Ipl is the magnitude (4 marks) b) A photon of frequency v is scattered trough 180° by an electron initially at rest in the laboratory. Show that the frequency of the...
Prove that the convex hull of a set using the fact that it is compact. x1,., nin R" is bounded,, without Prove...
Prove that the convex hull of a set using the fact that it is compact. x1,., nin R" is bounded,, without
Prove that the convex hull of a set using the fact that it is compact. x1,., nin R" is bounded,, without
in the What is the momentum, in the center of mass reference frame, of a reaction +p+Kº+A if the has an energy E= 3 GeV in the laboratory reference frame? Notice that m.,- = 139.6 MeV/ca, mp = 938.3 MeV/c. (Tip: in the laboratory reference frame, the proton is at rest. In the center of mass reference frame, ộp = (P2c2 + m 4,P) and Pa- = (1pe2 +m-c, -D)) A photon with energy E = 10 MeV collides elastically...
4. (3 points) A photon has wavelength 450.0 nm. a) What is the momentum of the photon? b) Find the speed of a proton with the same momentum (from part a) Find the speed of a golf ball with the same momentum (from part a), if the mass of the golf ball is 45.9 g. c) What is the wavelength of a golf ball moving with speed 15 m/s? d)
3. (4 points) Photon collision! A photon with energy 2m hits a particle of mass m at rest. The photon back-scatters from this intcraction (that is, it movics in the opposite dircction) white the particle moves forward to conscrve momentum. Find the back-scattered photon's encrgy E and the particle's speed |]. (algebraically, not using cnergy momentum diagrams)
3. Using position and momentum operators prove that <xp>
= -<px> = ihbar/2 for the infinite potential energy well
wavefunctions.
4. Consider two operators defined as A+ and A-
any help with 3 and 4 would be greatly appreciated!!!
3. Using position and momentum operators prove that (xp) = -(p.c) = for the infinite potential energy well wavefunctions. 4. Consider two operators defined as A+ = a (- + oʻx) and A- = a (-de-a²x), where a = w and...
4) Prove the Lorentz transformation relations for energy and momentum.
Quantum Physics - Photon Momentum - Photon Scattering - Compton Effect 2 Photon Scattering by Electron - Compton Effect E = h' Ehf h (photon's momentum) 2 Before KW 2 After h 2-1=(1-cos) (Compton effect) m. = 2.43x10- Before After KEE E is between 0° and 180° The Planck constant is 6.626x10^-34 J s. The wavelength of the incident X-ray photon is unknown. The incident photon collides with the stationary electron. After the collision, the scattered photon's motion makes an...
Quantum Physics - Photon Momentum - Photon Scattering - Compton Effect 1 Photon Scattering by Electron - Compton Effect Ehf Ehr" P (photon's momentum) Before X After 2-X A Before I-cos8) (Compton effect) "=2.43 x 10-12 . Affer KE - E is between 0° and 180° The Planck constant is 6.626x10^-34 J s. The wavelength of the incident X-ray photon is 0.570 nm, 1nm = 10-ºm. The incident photon collides with the stationary electron. After the collision, the scattered photon's...
PHYS101 21 . a) Write down expressions for the total energy, E, and the momentum, p, of a particle. Express your answers in terms of the rest mass, m, and velocity, u, of the particle. 4 marks) Using these expressions, show that E2-ap of the momentum. m2ct, where p Ipl is the magnitude (4 marks) b) A photon of frequency v is scattered trough 180° by an electron initially at rest in the laboratory. Show that the frequency of the...
Prove that the convex hull of a set using the fact that it is compact. x1,., nin R" is bounded,, without
Prove that the convex hull of a set using the fact that it is compact. x1,., nin R" is bounded,, without
Most questions answered within 3 hours.
-
1. What is the meaning of the term communication style?
2. What are the benefits to...
asked 29 minutes ago -
9.) You are buying a car that cost $26,500. You make payments of
$412 each month...
asked 54 minutes ago -
. Suppose a discrete random variable has probability
distribution
P(x) = .2 if x = 0...
asked 2 hours ago -
Problem #1
The area between Z = 0 and Z = 2.50
The area between Z...
asked 1 hour ago -
Under the influence of its drive force, a snowmobile is moving
at a constant velocity along...
asked 2 hours ago -
Why do organizations decline? What steps can top
management take to halt, decline, and restore organizational...
asked 2 hours ago -
What mechanisms Drive speciation??
(I.e. what was Dawins theory on the orgin of species, and how...
asked 4 hours ago -
The manager at a car assembly plant believes that the mean
assembly time for a car...
asked 4 hours ago -
Which of the following is true of electron capture?
A) It decreases the nuclide's mass number...
asked 6 hours ago -
Assuming an efficiency of 43.10%, calculate the actual yield of
magnesium nitrate formed from 114.9 g...
asked 7 hours ago -
The highly pathogenic bacterium Clostridium
perfringens causes gangrene, a disease that results in the
destruction of...
asked 8 hours ago -
In the context of situation analysis, which of the following is
a category for analysis in...
asked 8 hours ago