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 I (3)
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Articles 1  24 of 24
FullText Articles in Physics
Physics 3710 – Problem Set #7, David Peak
Physics 3710 – Problem Set #7, David Peak
Problems
Physics 3710 – Problem Set #7 Newtonian gravity
Physics 3710 – Problem Set #8, David Peak
Physics 3710 – Problem Set #8, David Peak
Problems
Physics 3710 – Problem Set #8 Relativistic gravity, I
Physics 3710 – Problem Set #10, David Peak
Physics 3710 – Problem Set #10, David Peak
Problems
Physics 3710 – Problem Set #10 Relativistic gravity, III
Problems 13 refer to: The maximum measured z value for a galaxy is 11.1. As on page 1, GR7, z = λ_{d} − λ_{e} / λ_{e}.
Physics 3710 – Problem Set #4, David Peak
Physics 3710 – Problem Set #4, David Peak
Problems
Physics 3710 – Problem Set #4 Relativistic kinematics, II
Physics 3710 – Problem Set #12, David Peak
Physics 3710 – Problem Set #12, David Peak
Problems
Problem Set #12 Quarks and gluons
In the following solid lines represent quarks or antiquarks and dotted lines represent gluons. Time increases upward.
Physics 3710 – Problem Set #6, David Peak
Physics 3710 – Problem Set #6, David Peak
Problems
Physics 3710 – Problem Set #6 Relativistic dynamics, II
Problems 15 refer to: The mass of the neutron is 1.008664 u and that of the proton is 1.007276 u, where 1 u = 931.5 MeV.
Physics 3710 – Problem Set #9, David Peak
Physics 3710 – Problem Set #9, David Peak
Problems
Physics 3710 – Problem Set #9 Relativistic gravity, II
Physics 3710 – Problem Set #13, David Peak
Physics 3710 – Problem Set #13, David Peak
Problems
Physics 3710 – Problem Set #13 Some weak interaction stuff
Questions 14 refer to the diagram at the right. In it, a particle p_{1} absorbs a particle X and transforms into a particle p_{2}. Time increases vertically.
Physics 3710 – Problem Set #5, David Peak
Physics 3710 – Problem Set #5, David Peak
Problems
Physics 3710 – Problem Set #5 Relativistic dynamics, I
Problems 15 refer to: One mass, m_{1} = 1 (in some units), collides headon with a second mass, m_{2} = 2 , and sticks to it, forming a composite body of mass M . There are no external forces. Observer O records m_{1} as initially moving with dimensionless velocity, u1 = +0.9 in the x  direction, while m_{2} is recorded to be at rest. Do not make unwarranted assumptions about M , please; that’s the point of this set of problems.
Physics 3710 – Problem Set #3, David Peak
Physics 3710 – Problem Set #3, David Peak
Problems
Physics 3710 – Problem Set #3 Relativistic kinematics, I
Physics 3710 – Problem Set #2, David Peak
Physics 3710 – Problem Set #2, David Peak
Problems
Physics 3710 – Problem Set #2 Newtonian relativity
Problems 14 refer to: Sound travels at about 330 m/s in still air. Observer O is at rest with respect to still air, observer O′ travels with constant velocity +50 m/s in the common x, x′ direction. Event A is the emission of a sound pulse from a stationary source at the origin of O; it occurs at x_{A} = 0 at t_{A} = 0. Event B is the reflection of the pulse at x_{B} = +100 m. Event C is the detection of the reflected pulse at x_{C} = 0 ...
Physics 3710 – Problem Set #11, David Peak
Physics 3710 – Problem Set #11, David Peak
Problems
Physics 3710 – Problem Set #11 QED Feynman diagrams
The solid arrows are electrons or positrons, the wavy lines are photons. Describe the “in” and “out” states shown below and describe what happens at each vertex. What is an overall name for each of the diagrams shown? (e.g., “electronphoton scattering”)
Problem Set #8, David Peak
Problem Set #8, David Peak
Problems
A bit of stat mech
Problems 13 refer to: N identical, noninteracting, and distinguishable spin1/2 particles (i.e., their separation is much greater than their de Broglie wavelength) are placed in an external magnetic field. Assume the ground state energy of one such particle is 0 and the excited state energy is ε , and the system is in thermal equilibrium at temperature T.
Problem Set #4, David Peak
Problem Set #1, David Peak
Problem Set #1, David Peak
Problems
A little E&M practice
Problems 12 refer to: The electric field in a laser beam is given by E( x,t) = (1000V/m)sin[(πx10^{7}rad/m) x + (3πx10^{15}rad/s)t].
Problem Set #6, David Peak
Problem Set #10, David Peak
Problem Set #12, David Peak
Problem Set #3, David Peak
Problem Set #3, David Peak
Problems
Comparing classical electromagnetic waves with photon probability waves.
Problem 1 refers to: A standing electric field wave (one with lots of photons) in a quantum wire stretching between x = 0 and x = L is described by E(x,t)=E_{max}sin(3πx/L)cos(3πct/L). Let L = 900 nm.
Problem Set #2, David Peak
Problem Set #2, David Peak
Problems
A little energy and momentum practice (and units)
Problems 12 deal with “rest” energy and relativity.
Problem Set #7, David Peak
Problem Set #11, David Peak
Problem Set #11, David Peak
Problems
In problems 13 compare the average number density ρ with the quantum number density
Problem Set #5, David Peak
Problem Set #9, David Peak
Problem Set #9, David Peak
Problems
Another bit of stat mech
Problems 13 refer to: N identical, noninteracting, and distinguishable quantum harmonic oscillators (i.e., their separation is much greater than their de Broglie wavelength) are in thermal equilibrium at temperature T. The energy of each oscillator can be expressed as ε_{n} = nε , where ε is the level spacing and n = 0, 1, 2, … .