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All questions asked by RAFATH

List all solved & unsolved questions asked by RAFATH

"Mistaken as" vs. "mistaken for"

2   English Language & Usage Asked on 07/28/2020

grammar  grammaticality  meaning  prepositions  word choice 

The Maximum Height A Block Can Climb On A Ramp

2   Physics Asked on 02/14/2021

classical mechanics 

Does it always take the same amount of energy to get from A to B?

2   Physics Asked on 02/14/2021

dissipation  energy  energy conservation  newtonian mechanics 

Writing the $U(1)$ gauge transformation as coordinate transformation

1   Physics Asked on 02/14/2021

gauge invariance  gauge theory  quantum mechanics 

How to deal with cross-terms in squared slashed covariant derivative in QED?

1   Physics Asked on 02/14/2021

dirac equation  dirac matrices  electromagnetism  homework and exercises  quantum electrodynamics 

How to calculate the radiation pressure on a moving surface?

1   Physics Asked on 02/14/2021

electromagnetic radiation  radiation pressure  reflection 

The age of black holes

1   Physics Asked on 02/14/2021

black holes  general relativity  gravity  time dilation  wormholes 

How to understand Peierls substitution?

0   Physics Asked on 02/14/2021

crystals  lattice model  quantum mechanics  solid state physics 

What is electron momentum density in solids and molecules?

1   Physics Asked on 02/14/2021

atomic physics  solid state physics  spectroscopy 

Does spin direction of massless fermions require anti-particles?

0   Physics Asked on 02/14/2021

neutrinos  quantum spin 

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