The addition of information to a pdu as it's passed from one layer to the next is called

Experimental data that is expressed using numbers is said to be

For positive constants a and b, the force between two atoms in a molecule is given f(r) = −a r2 + b r3 , where r > 0 is the distance between the atoms. note: a and b are upper case letters. (a) find f '(r) = (b) find the critical point for f(r). r = (c) find f ''(r) = (d) find the value of r so that f ''(r) = 0.

George is working as a programming team lead. which statements correctly describe the skills that he requires?