Why is the mol a fundamental physical quantity?
60522
Why is the mole/"amount of substance" a dimensional quantity?
88227
Why is the ampere a base unit and not the coulomb?
13319
Recognize physical constants?
33512
What's the difference between the atomic and nonatomic attributes?
82362
Is there a fundamental reason why gravitational mass is the same as inertial mass?
25641
Is there a direct physical interpretation for the complex wavefunction?
131167
Kinetic energy of the object, but Potential energy of the system: Why is it so?
109423
Purpose of universal property of a product.
113606
Dimensionless quantities
90250
Two explanations of non-zero atomic radius
138818
From which dimensionful constants does proton mass arise?
65039
What is the reason of $dT/dh = 0$ in the gas column?
145468
Why do we say that in Coulomb's law the force is proportional to $\frac{1}{r^{2}}$ and not $\frac{1}{r^{3}}$?
7477
Why is the momentum of a particle $\gamma mv$?
20401
Why doesn't matter pass through other matter if atoms are 99.999% empty space?
146358
Why is there a $\frac 1 2$ in $\frac 1 2 mv^2$?
67656
Intrinsic vs. extrinsic properties of surfaces