Which pair of principles is associated with Archimedes?
A flat-Earth rule and a theory of eclipses
The law of the lever and the principle of buoyancy✓Bonne réponse
A claim that every immersed object must float
The precession of equinoxes and planetary epicycles
Explication
Archimedes is linked with the mechanical law of the lever and with buoyancy measured by the weight of displaced fluid. Buoyancy does not guarantee that every immersed object floats, and the lever law is not an account of planetary paths.