A 2004 article described this law as "the soul of classical mechanics." For 10 points each:
[10e] Name this law that the title of that article states in the form "F equals ma" ("M A").
ANSWER: Newton's second law of motion [or Newton's second law of motion; accept two in place of second]
[10h] The article "Whence the force of F equals ma?" was published by this physicist in 2004, the same year in which he shared a Nobel Prize with David Gross and David Politzer for discovering asymptotic freedom. More recently, this physicist first proposed the existence of time crystals.
ANSWER: Frank Wilczek (VILL-chek) [Frank Anthony Wilczek]
[10m] Wilczek has proposed that this statement should be considered as Newton's zeroth law of motion, as it is implicitly assumed in the other three laws. In fluid dynamics, this statement is equivalent to the continuity equation for density.
ANSWER: conservation of mass [or mass being conserved or mass being constant]
<Joseph Krol , Science - Physics - Classical Mechanics>