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Feynmanfan85

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23 Questions

Votes Activity Newest Views
2
13
votes
2
answers
2k
views

Why isn't current carried through a vacuum?

electricity electric-current electrical-resistance vacuum
Dec 7 '19 at 7:41 user8718165 1,498
 
4
votes
3
answers
140
views

What is the correct frame of reference for determining the magnetic force on a charge?

electromagnetism special-relativity inertial-frames
Aug 11 at 2:05 BruceAW 11
2
3
votes
4
answers
3k
views

How is the entropy at the time of the Big Bang calculated?

thermodynamics entropy big-bang
Nov 5 '19 at 17:20 user1379857 5,022
 
2
votes
1
answer
17
views

Does the vanishing point of linear perspective occur when there's a 1-to-1 matching between the lights in the source, and the sensors of the observer?

optics visible-light perception
Sep 27 at 1:41 benrg 8,472
 
2
votes
1
answer
102
views

Is there an experiment showing that the warping of space affects the shape of an electrostatic field? [duplicate]

general-relativity electrostatics gravity
Aug 9 '19 at 13:14 Feynmanfan85 493
3
2
votes
2
answers
854
views

How much current is induced by a free falling magnet?

newtonian-mechanics newtonian-gravity electromagnetic-induction perpetual-motion
Apr 22 '18 at 2:47 rob♦ 53.7k
1
1
vote
3
answers
48
views

Does an electron beam have a polarity, in the way that light has a polarity?

electromagnetism electric-fields electrons
Aug 25 at 21:16 JEB 16.3k
 
1
vote
0
answers
18
views

What happens to the motions of a gas if its container is attached to a gyroscopic stabalizer?

thermodynamics energy gyroscopes
May 10 at 18:04 Cleonis 7,834
1
1
vote
2
answers
66
views

Why doesn't the energy of an incident photon impact the angle of reflection?

visible-light speed-of-light
Aug 1 '19 at 15:18 Bill Alsept 2,688
 
1
vote
5
answers
251
views

Uncertainty Principle and the Momentum of Light

quantum-mechanics optics visible-light speed-of-light heisenberg-uncertainty-principle
Apr 22 '19 at 17:21 Community♦ 1
1
1
vote
2
answers
64
views

Momentum of a Quantum Wave

quantum-mechanics visible-light momentum double-slit-experiment
Sep 5 '18 at 12:21 PhysicsDave 1,539
 
1
vote
1
answer
52
views

When does the exchange of energy take place in the Quantum Eraser experiment?

visible-light quantum-information quantum-entanglement double-slit-experiment quantum-eraser
Sep 2 '18 at 21:23 Norbert Schuch 13.7k
 
1
vote
0
answers
69
views

Measuring time in the photoelectric effect

special-relativity time-dilation resonance photoelectric-effect
Apr 13 '18 at 14:44 Feynmanfan85 493
 
0
votes
1
answer
43
views

If two charges follow identical, curved paths, at equal velocities, and are equidistant at all times, will they exert magnetic force on each other?

electromagnetism electrostatics magnetic-fields charge electromagnetic-induction
Dec 30 '19 at 5:11 aditya_stack 410
 
0
votes
0
answers
13
views

Does the emission of Larmour Radiation by an electron require additional force to be applied to achieve a given velocity?

electrons acceleration radiation
Dec 30 '19 at 0:47 Feynmanfan85 493
 
0
votes
0
answers
21
views

Question about the potential energy of a charge

forces electrostatics electric-fields charge batteries
Nov 10 '19 at 2:42 Qmechanic♦ 142k
1
0
votes
1
answer
48
views

Why aren't electrical power generators housed in “floating” structures that would allow them to spin?

electricity electromagnetic-induction
Jul 29 '19 at 18:43 Community♦ 1
 
0
votes
1
answer
48
views

Can iridescence be produced with a monochromatic light source?

visible-light reflection diffraction
Jul 15 '19 at 13:39 Lewis Miller 5,135
 
0
votes
1
answer
85
views

How would classical physics explain the sorting of objects according to density in a gravitational field?

newtonian-mechanics gravity newtonian-gravity
Jul 7 '19 at 0:46 S. McGrew 22.6k
 
0
votes
1
answer
60
views

Has the velocity of propagation of a magnetic field been measured?

electromagnetism speed-of-light
Oct 22 '18 at 23:04 niels nielsen 46.5k
 
0
votes
2
answers
45
views

Can an electrostatic field itself be insulated, as opposed to creating resistance to a current?

electricity electric-fields charge
Oct 22 '18 at 11:46 Feynmanfan85 493
 
0
votes
1
answer
33
views

If I rotate a metallic plate with a threshold frequency of f0 around a light source with a frequency of f0, would the plate eject electrons?

photoelectric-effect
May 12 '18 at 4:40 Piyush sharma 21
 
-1
votes
3
answers
135
views

Does general relativity predict that the gravitational field of a black hole would be uniform about its center of mass?

general-relativity gravity black-holes
Aug 11 '19 at 22:47 Alfred Centauri 55.5k
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