Assume the radius of an atom, which can be represented as a hard sphere, is r = 1.95 å. the atom is placed in a (a) simple cubic, (b) fcc, (c) bcc, and (d) diamond lattice. as- suming that nearest atoms are touching each other, what is the lattice constant of each lattice?

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b. refraction c. diffraction d. interference

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

Argon, neon, and xenon are examples of