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Why is the plane wave ansatz appropriate for scattering cross sections of a localized particle beam?

quantum-mechanics scattering scattering-cross-section plane-wave

answered 11 mins ago J. Murray 18.8k

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0

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5

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Canonical rotations that do not produce computational singularities

lagrangian-formalism rotational-dynamics hamiltonian-formalism computational-physics rotational-kinematics

asked 19 mins ago Egeris 11

3

votes

0

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29

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Time lag between observed electrical field and polarity of light?

quantum-mechanics optics refraction dielectric

modified 23 mins ago Christopher 191

2

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1

answer

130

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If there is a point in a past set, does its chronological future interset a future set?

general-relativity spacetime causality singularities

modified 27 mins ago Community♦ 1

4

votes

3

answers

278

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Why does Poincaré symmetry work to describe the particles even though space seems inhomogeneous?

general-relativity special-relativity cosmology metric-tensor symmetry

modified 40 mins ago kevin012 379

1

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1

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11

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Enthalpy during compression of water

thermodynamics

modified 51 mins ago SuperCiocia 16.1k

0

votes

0

answers

12

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How we take wavefunctions with a phase for symmetric potentials

quantum-mechanics wavefunction symmetry potential

modified 52 mins ago SuperCiocia 16.1k

3

votes

3

answers

64

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In orbital mechanics, what does the $ r \dot{\phi}$ represent?

kinematics orbital-motion coordinate-systems velocity

answered 1 hour ago user26872 2,378

0

votes

2

answers

197

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Do I need to use Pythagorean Theorem in 3d space for determining electric field induced by an infinite line of charge on a point?

homework-and-exercises electrostatics

modified 1 hour ago Community♦ 1

-3

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1

answer

26

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quantum behaviour of particles

quantum-mechanics

answered 1 hour ago Vadim 7,729

-2

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0

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14

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How do you calculate the acceleration of a ball rolling down a ramp?

kinematics

asked 1 hour ago Dan 1

1

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1

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11

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why symmetric potential has even bound ground state and does odd ground state exist?

quantum-mechanics wavefunction potential

answered 1 hour ago Vadim 7,729

1

vote

3

answers

24

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Why electrical resistance decreases with cross sectional area?

electricity electric-circuits electric-current electrical-resistance collision

answered 1 hour ago Richard Kiddman 95

0

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2

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17

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Distance from Instantaneous Centre of Rotation in Bicycle Kinematic Model

newtonian-mechanics rotational-kinematics

answered 2 hours ago RLH 403

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Why is the plane wave ansatz appropriate for scattering cross sections of a localized particle beam?

Canonical rotations that do not produce computational singularities

Time lag between observed electrical field and polarity of light?

If there is a point in a past set, does its chronological future interset a future set?

Why does Poincaré symmetry work to describe the particles even though space seems inhomogeneous?

Enthalpy during compression of water

How we take wavefunctions with a phase for symmetric potentials

In orbital mechanics, what does the $ r \dot{\phi}$ represent?

Do I need to use Pythagorean Theorem in 3d space for determining electric field induced by an infinite line of charge on a point?

quantum behaviour of particles

How do you calculate the acceleration of a ball rolling down a ramp?

why symmetric potential has even bound ground state and does odd ground state exist?

Why electrical resistance decreases with cross sectional area?

Distance from Instantaneous Centre of Rotation in Bicycle Kinematic Model

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