What is the darknet? a. an internet for non-english speaking people b. the criminal side of the internet c. an internet just for law enforcement d. the old, ipv4 internet that is being retired as ipv6 takes over e. none of the above?

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.