What is it called when groups of atoms align their magnetic poles? a. magnetic force b. magnetic poles c. magnetic field d. magnetic domains

What is the major limitation to the light microscope?

Ahypothetical metal has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.413 nm, 0.665 nm, and 0.876 nm, respectively. (a) if there are 8 atoms per unit cell and the atomic packing factor is 0.536, determine the atomic radius (in nm). (b) if the density is 3.99 g/cm3, calculate the metal's atomic weight (in g/mol).

In the absence of friction gravity and all other external forces