nervxxx

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Undergrad


36 Answers

newest activity votes
8
Does the mass point move?
7
Product of exponential of operators
5
Kinetic energy of a photon and Schwarzschild radius
5
Is it possible for an object to stop sinking after a while?
5
Suppose a hollow metal sphere filled with helium is dropped in a body of water
5
Gravity in other dimensions than 3 and stable orbits
4
A very elementary question regarding force of friction
4
What is the Lagrangian from which the Klein-Gordon equation is derived in QFT?
3
How do we know that $\psi$ is the eigenfunction of an operator $\hat{H}$ with eigenvalue $W$?
3
Lorentz invariance of the wave equation
2
Which is this formula Feynman talks about in the QED book?
2
Angular momentum conservation while internal frictional torque is present
2
Resistors in Parallel
2
One-loop $\phi^4$ theory in $d = 3$
2
Why does a rod rotate?
2
Path Integrals Page 278-9 Peskin
2
Deriving the conservation of mass in a perfect fluid
2
Deriving a QM expectation value for a square of momentum $\langle p^2 \rangle$
2
Must the Lagrangian always be known for the Euler-Lagrange equations to be of any use?
2
What is the Riemann curvature tensor contracted with the metric tensor?
2
Contact force betweeen 2 objects
2
Gravitational redshift derivation
2
block slides on smooth triangular wedge kept on smooth floor.Find velocity of wedge when block reaches bottom
2
Gravity from a singularity as distance approaches zero
2
Deriving the Lagrangian for a free particle
1
Notational techniques for dealing with creation operators on Fock space
1
Schmidt basis: Entanglement
1
Why is this identity an if, rather than if and only if?
1
Quantum Chemistry Kronecker Delta formality
1
where did I lose the negative sign when spring is in compression in a mass-spring problem?
1 2