query: Why is Coulomb's constant not unity?
positive_passages.docid: 73829
positive_passages.text: Coulomb's Law: why is $k = \dfrac{1}{4\pi\epsilon_0}$
negative_passages.docid: 141376
negative_passages.text: Why the dipole interaction term in the Hamiltonian has all diagonal elements to be zero in the energy eigenbasis?
negative_passages.docid: 153727
negative_passages.text: Constant term in Lagrangian
negative_passages.docid: 147524
negative_passages.text: Why is the "canonical momentum" for the Dirac equation not defined in terms of the "gauge covariant derivative"?
negative_passages.docid: 118598
negative_passages.text: Question about Coulomb's law
negative_passages.docid: 146926
negative_passages.text: Why don't products of Dirac deltas integrate correctly?
negative_passages.docid: 114003
negative_passages.text: Why is the work done on a charge calculated from infinity?
negative_passages.docid: 112179
negative_passages.text: Why don't the results of testing $H_0 : \beta = 0$ and $H_0 : {\rm cor}(X,Y)=0$ agree?
negative_passages.docid: 77975
negative_passages.text: How to force correct answers for Integrals of Cos[mx]*Cos[nx]?
negative_passages.docid: 130366
negative_passages.text: Self-energy of a uniformly charged, non-conducting sphere, using energy density formula
negative_passages.docid: 1454
negative_passages.text: Error "initializer element is not constant" when trying to initialize variable with const
negative_passages.docid: 106119
negative_passages.text: Why is there no permittivity-type constant for gravitation?
negative_passages.docid: 122670
negative_passages.text: Explanation for $E~$ not falling off at $1/r^2$ for infinite line and sheet charges?
negative_passages.docid: 43141
negative_passages.text: Why is the relationship between atomic number and density not linear?
negative_passages.docid: 31102
negative_passages.text: Why does $\frac{1}{r}\frac{dr}{d\theta} = \cot \psi$?
negative_passages.docid: 69776
negative_passages.text: Why is the diode forward voltage constant?
negative_passages.docid: 40683
negative_passages.text: What's wrong with the square root version of the Klein-Gordon equation?