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quantum-entanglement
resource-recommendations
differential-geometry
electric-current
friction
capacitance
acceleration
operators
experimental-physics
special-relativity
fluid-dynamics
electric-circuits
entropy
classical-mechanics
field-theory
hamiltonian-formalism
general-relativity
electrons
soft-question
rotational-dynamics
renormalization
time
charge
schroedinger-equation
visible-light
terminology
newtonian-mechanics
condensed-matter
electricity
water
waves
everyday-life
velocity
group-theory
tensor-calculus
gauge-theory
angular-momentum
semiconductor-physics
thermodynamics
standard-model
lagrangian-formalism
wavefunction
mass
spacetime
particle-physics
conservation-laws
symmetry
forces
space-expansion
kinematics
magnetic-fields
electromagnetism
mathematical-physics
hilbert-space
laser
speed-of-light
acoustics
energy-conservation
statistical-mechanics
potential
potential-energy
atomic-physics
vectors
metric-tensor
material-science
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momentum
temperature
gravity
astronomy
black-holes
inertial-frames
work
solid-state-physics
pressure
electrostatics
universe
harmonic-oscillator
radiation
energy
orbital-motion
astrophysics
cosmology
homework-and-exercises
quantum-electrodynamics
optics
nuclear-physics
quantum-field-theory
relativity
photons
electric-fields
string-theory
newtonian-gravity
quantum-spin
quantum-mechanics
reflection
reference-frames
electrical-resistance
quantum-information
electromagnetic-radiation
Binding energy converted to kinetic energy/mass loss
energy-conservation
nuclear-physics
mass-energy
binding-energy
What is the energy of Hydrogen with electrons interacting?
quantum-mechanics
hyperfine-structure
Do all planets rotate around the sun with the same acceleration?
newtonian-mechanics
newtonian-gravity
orbital-motion
acceleration
celestial-mechanics
Does this shadow diffraction effect have a name?
diffraction
shadow
Strength of the magnetic field generated by a subwoofer
electromagnetism
magnetic-fields
Photons, wave-like character
quantum-mechanics
electromagnetic-radiation
photons
double-slit-experiment
wave-particle-duality
Would a very strong force of gravity make things break apart?
forces
gravity
physical-chemistry
How to describe time dependence piece of a stationary state with average phase
quantum-mechanics
quantum-entanglement
time-evolution
atomic-clocks
Crossover frequency in RC filter circuits
electromagnetism
electric-circuits
voltage
frequency
inductance
Can non-monochromatic light be elliptically or circularly polarised?
optics
Newton's Third Law As Discussed in Den Hartog's Mechanics
newtonian-mechanics
forces
spring
statics
Scalar Propagator on the Torus in CFT (derivatives of Jacobi's $\theta_1$)
string-theory
conformal-field-theory
correlation-functions
propagator
Faraday disc volatage doubling
electromagnetism
Clausius Inequality application to engine
thermodynamics
entropy
heat-engine
Gauss Theorem:Electric field of an uniformly charged non-conducting spherical shell
electrostatics
electric-fields
charge
gauss-law
conductors
Why does nuclear fuel not form a critical mass in the course of a meltdown?
nuclear-physics
nuclear-engineering
Variation of the intrinsic-curvature scalar with respect to the induced metric
general-relativity
hamiltonian-formalism
Energy Transfer Between Coupled Oscillators
newtonian-mechanics
harmonic-oscillator
oscillators
coupled-oscillators
Is there work done when you push a book on a table? what about when you lift the book up?
newtonian-mechanics
forces
work
According to Conservation of Momentum, a gun in a sealed box should not have recoil?
momentum
conservation-laws
Servo motors Torque equation for robotic hand
torque
What is the minimum number of separable states needed to decompose an arbitrary separable state?
quantum-mechanics
quantum-information
quantum-entanglement
quantum-states
Is it safer to get off a hammock first or second?
newtonian-mechanics
forces
stability
Potential in the midway between parallel plates
electrostatics
potential
conventions
Does the emission line rpoduced depend upon which orbital the electron was in?
atomic-physics
Error estimate for the position of a maximum given data
error-analysis
To what kind of inertial observer would these vectors correspond to?
general-relativity
special-relativity
inertial-frames
Superfluidity: separation of quantised vortices in a vortex tangle
quantum-mechanics
fluid-dynamics
vortex
superfluidity
Does pollution affect the color of the sky?
optics
scattering
atmospheric-science
Why does energy not have gravity?
general-relativity
gravity
Variation of cross-sectional area during the passage of an elastic wave
homework-and-exercises
classical-mechanics
waves
solid-mechanics
What is a good analogy for electric potential?
electrostatics
potential
potential-energy
voltage
How do you calculate the moment of inertia given the mass and final velocity of a hollow sphere?
angular-momentum
moment-of-inertia
angular-velocity
Proof that (1/2,1/2) Lorentz group representation is a 4-vector
group-theory
group-representations
representation-theory
lie-algebra
lorentz-symmetry
Fire behaviour in microgravity
experimental-physics
vacuum
space
combustion
Is this a valid relationship between luminous intensity and illuminance at a point?
photometry
How does spin flip take place?
electromagnetism
quantum-spin
nuclear-magnetic-resonance
Thought experiment regarding a posible preferential configuration of tectonic plates
angular-momentum
rotational-dynamics
rotational-kinematics
rotation
planets
orbital precession in GR is a mathematical fantasy?
general-relativity
orbital-motion
How to convert position expectation value in terms of momentum representation?
quantum-mechanics
homework-and-exercises
fourier-transform
Topological invariant for interacting systems using single particle green functions?
condensed-matter
topological-order
many-body
topological-insulators
topological-phase
Why is the angle of contact different for a meniscus and a droplet in the same water/glass/air environment?
surface-tension
capillary-action
adhesion
Heat Equation at interface of 2 materials using Finite Difference Method - Can it be non-dimensional?
thermodynamics
computational-physics
diffusion
Wick-rotating the Fourier transform of $\mu+1$ propagators
quantum-field-theory
integration
propagator
wick-rotation
Why is a null field also primary, in CFT?
conformal-field-theory
Intuitively, why are only two initial conditions needed for the wave equation? Why not 3 or 4?
waves
differential-equations
Stimulated Emission has same properties as optical radiation that induces it. Why?
solid-state-physics
laser
Dependence of sound pressure level on input sound frequency
acoustics
Cascade geometry in QCL (Quantum Cascade Laser)
quantum-mechanics
laser
Magnetic field enegy conservation
electric-circuits
energy-conservation
electrical-resistance
inductance
batteries
In an AC inductive circuit, the applied voltage is equal to the back emf?
electromagnetism
electromagnetic-induction
How is centrifugal force derived?
newtonian-mechanics
reference-frames
centripetal-force
centrifugal-force
Do black holes have charges?
electromagnetism
general-relativity
black-holes
charge
reissner-nordstrom-metric
Is the trajectory of a quantum particle a well defined concept and how does this depend on the interpretation of quantum mechanics?
quantum-mechanics
quantum-interpretations
Why does the sun "beat down" harder in the summer - or does it?
everyday-life
sun
infrared-radiation
Case where potential difference causes no current
electric-circuits
electric-current
batteries
Equivalence principle and the meaning of the coordinate speed of light
general-relativity
speed-of-light
equivalence-principle
Connection between Weyl fermions and Fermi arcs
condensed-matter
solid-state-physics
resource-recommendations
material-science
fermions
Comments on the Magnitude of Induced Charge
electromagnetism
electrostatics
electric-fields
charge
induction
Are there bound states from light-light or gravity-gravity scattering in general relativity?
general-relativity
black-holes
binding-energy
I know that electrons possess a magnetic moment so how can I calculate how attracted they will be to a magnetic field?
electromagnetism
Source of the Chemical Potential
quantum-mechanics
statistical-mechanics
chemical-potential
Bulk boundary correspondence = difference in Chern numbers?
solid-state-physics
topology
topological-insulators
Special Relativity: Two Clocks Thought Experiment
special-relativity
Magnetic field inside a perfectly diamagnetic ball
electromagnetism
magnetic-fields
magnetostatics
Calculating the Coefficient of Restitution Based on two Objects
homework-and-exercises
material-science
collision
the ratio of sound intensities
acoustics
Do we hear anything special when the beat frequency is in audible range?
waves
acoustics
Is Thomas rotation compatible with equivalence principle?
special-relativity
reference-frames
equivalence-principle
Check energy using Schrodingers stationary state equation
quantum-mechanics
homework-and-exercises
energy
schroedinger-equation
Gravitational Time Dilation Inside a Massive, Non-Uniform, Non-Rotating Sphere
general-relativity
metric-tensor
time-dilation
neutron-stars
How to convert volts to electrons?
electromagnetism
thermodynamics
electrons
charge
capacitance
Spectral lines and the Doppler effect
doppler-effect
Why is it interesting to study gravity in (2+1)D?
general-relativity
gravity
spacetime-dimensions
Why is Boltzmann entropy equation used for configurational entropy?
thermodynamics
statistical-mechanics
entropy
Monopole magnets
electromagnetism
magnetic-fields
magnetic-monopoles
Will gravitational wave detectors be able to locate black hole collisions in time to view them?
gravitational-waves
ligo
gravitational-wave-detectors
Dark matter and LIGO
gravitational-waves
dark-matter
ligo
gravitational-wave-detectors
How well can we localize gravitational wave sources?
measurements
gravitational-waves
interferometry
ligo
gravitational-wave-detectors
Why do detectors for gravitational waves have only two perpendicular arms, not three?
gravitational-waves
ligo
gravitational-wave-detectors
Prove no contraction in the orthogonal directions
special-relativity
inertial-frames
lorentz-symmetry
Enrico Fermi's photo and the wrong fine structure constant
atomic-physics
history
physical-constants
textbook-erratum
Niels Bohr's Calculation of Einstein's Photon Clock Thought Experiment
quantum-mechanics
heisenberg-uncertainty-principle
Charge distribution on conductors?
electrostatics
charge
Mathematical expression of energy storage
material-science
curvature
stress-energy-momentum-tensor
elasticity
stress-strain
Measuring time in the photoelectric effect
special-relativity
time-dilation
resonance
photoelectric-effect
Is it possible that the LIGO results are anomalies?
experimental-physics
gravitational-waves
ligo
gravitational-wave-detectors
What is driving the flow of water?
fluid-dynamics
Representing polypeptide in spherical polar coordinates in protien folding problem
classical-mechanics
mathematical-physics
physical-chemistry
biophysics
polymers
What's a good book on experimental methods for physics?
experimental-physics
resource-recommendations
Moment of inertia in a perfectly inelastic collision
angular-momentum
collision
moment-of-inertia
What does Gradient actually mean?
vectors
differentiation
vector-fields
What is the relativistic Hamiltonian for a charged particle in an EM field, using the magnetic scalar potential?
newtonian-mechanics
electromagnetism
hamiltonian-formalism
inertial-frames
Equation of magnetic field lines of a current carrying loop
electromagnetism
Electric field generated by a uniform rod
electrostatics
electric-fields
potential
adiabatic work done by gas
thermodynamics
work
adiabatic
Does the entropy of the universe change as expansion exceeds the speed of light?
photons
entropy
information
If angular velocity & angular acceleration are vectors, why not angular displacement?
rotational-kinematics
Why acceleration is positive in this graph?
kinematics
acceleration
differentiation
Superposition of position eigenstates after measurement of position?
quantum-mechanics
measurements
measurement-problem
superposition