Physics
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Arthur
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All Questions Answers
Score Newest
question
118
What, in simplest terms, is gauge invariance?
Jul 8, 2016
answer
35
Why did we expect gravitational mass and inertial mass to be different?
Apr 14, 2021
answer
25
How does 'Tear Here' work?
Jun 12, 2017
answer
25
Why isn't an infinite, flat, nonexpanding universe filled with a uniform matter distribution a solution to Einstein's equation?
Sep 24, 2018
answer
8
Why is force a vector?
Dec 4, 2017
question
7
Why do you fall towards the center of a black hole?
Aug 4, 2016
answer
7
Are the Christoffel symbols all zero in gravity-free space?
Oct 16, 2017
answer
7
Why isn't energy conserved in this collision problem?
Nov 2, 2018
answer
7
Is energy more fundamental than force?
Nov 10, 2019
question
6
Faster than light messages (paradox resolution)
Sep 23, 2013
Top network posts
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173
Why is the product of two rotation matrices not commutative?
138
Is it impossible to perfectly fit a polynomial to a trigonometric function on a closed interval?
87
Are there primes of every possible number of digits?
87
Are polynomials with the same roots identical?
72
Can you give me some concrete examples of magmas?

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