Free advanced physics homework help via qualified mentors. Upper undergraduate and graduate level. Please use the template when requesting help and show your work.
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Rotating cylinder, how long will it take before the angular velocity is halved
- buksesele
- · Replies 2 ·
Having trouble with this normalization
- Bladibla
- · Replies 10 ·
Why Does Copper Reflect More Light Than Lead?
- sophieyeomans
- · Replies 1 ·
Solving Gauss's Law Problem for Electric Field
- PhysicsinCalifornia
- · Replies 3 ·
Why Does a Magnet Wobble Over a Superconductor?
- _anant
- · Replies 4 ·
Electric Field Energy Density 3-Form Explained
- Swapnil
- · Replies 1 ·
The Friedmann equation in a lambda-dominated universe
- _Andreas
- · Replies 4 ·
Solving Double Slit Arrangement Q's
- Qyzren
- · Replies 4 ·
Identifying a Perihelion Shift Solution
- shalayka
- · Replies 5 ·
Question about light intensity and resistance
- jimbobjb
- · Replies 1 ·
The ground state of the infinite square wel
- ttiger654
- · Replies 3 ·
How Do Relativity Principles Apply to Moving Clocks on a Train Platform?
- neutrino
- · Replies 3 ·
Potential Barrier (Q.M. vs Classical Phy.)
- n0_3sc
- · Replies 1 ·
How Does Distance Affect Electric Field Intensity?
- weskerq8
- · Replies 5 ·
A question about Analytical Mechanics
- enricfemi
- · Replies 4 ·
How Does Drag Force Relate to Newton's Laws of Motion?
- Mag|cK
- · Replies 21 ·
What Is the Orbital Angular Momentum of an Electron in the 3p State?
- rob malkin
- · Replies 3 ·
Is There a Mistake in My Proof for the Identity of Pauli Spin Matrices?
- InGaAsP
- · Replies 4 ·
Hydrogen molecule as a harmonic oscillator
- jimmypoopins
- · Replies 2 ·
Fermi-dirac statistics, Griffiths 5.28
- Elvex
- · Replies 3 ·
Measuring Neutrino Mass from a Supernova
- touqra
- · Replies 4 ·
Quantum Computing: Entangled Qubits & Hilbert Space
- GluonZ
- · Replies 1 ·
Generalized Coordinates: Double Pendulum
- Pythagorean
- · Replies 9 ·
2D Fermi Gas: Find Density of States
- cepheid
- · Replies 2 ·
Where Should I Section for Drawing Shear and Moment Diagrams in 2D?
- kasse
- · Replies 3 ·
Potential Barrier (Q.M. vs Classical Phy.)
- n0_3sc
- · Replies 3 ·
What Is the End Correction in Resonance Column Experiments?
- chaoseverlasting
- · Replies 3 ·
Semiconductor Diode: Applications & Currents
- pari786
- · Replies 2 ·
Quantum Field Theory: Evaluating Integrals on Page 27
- touqra
- · Replies 5 ·
A spring-block system on a frictional plane
- xboy
- · Replies 3 ·
Can anyone help thermodynamics specific heat
- foranlogan2
- · Replies 2 ·
Radius of motion of particle through magnetic field.
- KingNothing
- · Replies 2 ·
Why Does Time Dilation Seem Asymmetrical?
- Ahmed Abdullah
- · Replies 3 ·
What is convection and how does it transfer heat?
- chaoseverlasting
- · Replies 1 ·
Wave Motion: Examining Displacement of Particles
- chaoseverlasting
- · Replies 6 ·
Understanding Heat Radiation and Heat Change in Thermodynamics
- douds
- · Replies 14 ·
Need the correct time dependent function
- _Andreas
- · Replies 2 ·
Average value in a one-dimensional well
- kreil
- · Replies 2 ·
Are I(nu, T) and I(lamda, T) Equivalent in Planck's Law?
- nicktacik
- · Replies 2 ·
What Does \mathbf{q_\perp} Represent in e^{i \mathbf{q_\perp \cdot x}}?
- MadMax
- · Replies 7 ·
Calculate the speed of the spacecraft
- kreil
- · Replies 6 ·
What is L^2Ψ for a 3px state of a H-atom?
- mordacious
- · Replies 4 ·
Deriving the Bateman equation of Nuclear Decay Chains
- Elariel
- · Replies 1 ·
Find max E of a photon in Compton Collision
- Tyst
- · Replies 1 ·
+ instead of - for Maxwell Relation?
- pivoxa15
- · Replies 4 ·
What is the probability of an alpha particle escaping from a nucleus?
- crimson.red
- · Replies 1 ·
Multipole Expansion Homework: Calculate Approx. Electrostatic Potential
- Ruddiger27
- · Replies 2 ·
Understanding the Role of the Dirac Delta Function in Multipolar Polarization
- scarecrow
- · Replies 2 ·
Are the Eigenvalues of a Unitary Operator of the Form e^i(a)?
- jnazor
- · Replies 4 ·
Mechanics question involving pulleys: where is the problem?
- Anonymouse
- · Replies 2 ·
Challenge/discuss/help? introductory quantum mechanics and perturbation theory
- audreyh
- · Replies 1 ·
How to Prove the Refractive Index Equation in a Michelson Interferometer?
- t1mbro
- · Replies 2 ·
How to Find Potential Outside a Charged Disc?
- Azael
- · Replies 4 ·
Solving E&M Problem: Need Help Writing sinh(...) as a Product of p & k
- NeoDevin
- · Replies 3 ·
Damped Oscillator: Var of Area in Phase Space Over Time
- Sojourner01
- · Replies 1 ·
Why Is My Rotation Problem Still Unanswered?
- Ja4Coltrane
- · Replies 3 ·
Eigenvalues and eigenfunctions of the lowering operator
- Ed Quanta
- · Replies 2 ·
What is the derivation of the equation for (d/dv)(ds) in lecture notes?
- pivoxa15
- · Replies 5 ·
Do Delta Potentials Allow for Even Solutions in Quantum Mechanics?
- G01
- · Replies 3 ·
Why Generating a Purely Optical Standing Wave is Impossible
- kingyof2thejring
- · Replies 1 ·
Calculating the Hamiltonian Matrix for a Rotating Molecule
- foranlogan2
- · Replies 1 ·
Electric susceptibility problem
- Psi-String
- · Replies 5 ·
Does the Tennis Ball Clear the Net?
- crazy_life
- · Replies 5 ·
How Does the Yukawa Potential Modify the Ground State Energy of a Hydrogen Atom?
- foranlogan2
- · Replies 7 ·
Finding Probabilities for Electron Spin in Quantum Mechanics
- foranlogan2
- · Replies 1 ·
Are Eigenvectors of Unitary Transformations Orthogonal?
- Ed Quanta
- · Replies 13 ·
Pressure, volume and temperature in thermodynamics
- pivoxa15
- · Replies 1 ·
Why Does Maxwell's Speed Distribution Law Use Exponential Functions?
- Kolahal Bhattacharya
- · Replies 4 ·
Solving a Transformer Problem: Primary and Secondary Coil Ratio Calculation
- candyq27
- · Replies 7 ·
What is the current drawn by the motor at one-third normal speed?
- candyq27
- · Replies 3 ·
Eigenvalues in QM: Find Out Why They Always Yield Same Value
- pivoxa15
- · Replies 8 ·
Relativistic inelastic collisions
- Amith2006
- · Replies 2 ·
Double Ring Electrode Trap: Build Project
- a789irfan
- · Replies 1 ·
How can magnetic dipole derivations be solved without using the force equation?
- Kolahal Bhattacharya
- · Replies 3 ·
How Do You Normalize Quantum States and Calculate Spin Expectation Values?
- foranlogan2
- · Replies 1 ·
Particle on a ring question φimNe=Ψ
- nalipur07
- · Replies 1 ·
Singly Ionized Li, Perturbation and Integral Help
- logic smogic
- · Replies 1 ·
Eigenfunctions (orthogonality & expansion)
- n0_3sc
- · Replies 6 ·
Hydrogen Orbitals: Explaining the Mysteries
- shehri
- · Replies 1 ·
Can the di-proton (di-hydrogen) exist?
- ziad1985
- · Replies 22 ·
How Do Time Dilation and Length Contraction Affect Colliding Rockets?
- Tyst
- · Replies 2 ·
Stationary particle in a laser beam
- Dart82
- · Replies 1 ·
Can someone tell me how to integrate this?
- Gyroscope
- · Replies 6 ·
Analytical solutions of S.E. for unusual potential
- DevoBoy
- · Replies 4 ·
Use energy conservation to determine the forces
- imy786
- · Replies 46 ·
Conductors and co-axial cables?
- Swapnil
- · Replies 12 ·
Nodes in the resulting standing wave
- kingyof2thejring
- · Replies 1 ·
Two Slit Interference Homework: Amplitudes & Probability
- Tomsk
- · Replies 1 ·
Help! "Proof" Troubles: Fixing Flaws in an Unclear Derivation
- Cyrus
- · Replies 8 ·
Special relativity of two spaceships
- Brewer
- · Replies 11 ·
Sum of two planewaves using momentum operator
- DevoBoy
- · Replies 1 ·
Current in a Loop: Solving for Magnitude at t=20s
- candyq27
- · Replies 11 ·
Solve "Wires and Currents" Homework w/ Answers
- candyq27
- · Replies 9 ·
Frequency of small oscillations
- LHarriger
- · Replies 1 ·
Can Poisson's Equation Be Solved Using a Legendre Polynomial?
- H_man
- · Replies 9 ·
Even parity => symmetric space wave function?
- mrandersdk
- · Replies 7 ·
How can the drift velocity and voltage be determined for two different samples?
- Larsson
- · Replies 1 ·
B.) Mass Defect & Binding Energy for Astatine 21885At
- StudentofPhysics
- · Replies 21 ·
Conservation of Energy and maximum height
- Almoore01
- · Replies 5 ·
Calculating Speed for Sliding and Rotating Sphere with Friction
- daudaudaudau
- · Replies 6 ·