Explain when to choose aoa and when to choose aon? also explain backward pass ,forward pass and slack in the software project management subject.

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Where can page numbers appear? check all that apply. in the header inside tables in the footer at the bottom of columns at the top of columns

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.