What is a Clinical redundancy check? A- The actual data being transported by Ethernet frame
B-A mathematical calculation used to ensure that all data arrived intact
C-A technique that allows for multiple logical LANs to operate on the same equipment
D-A way for two computers to synchronize their clocks

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.