My old account stopped working so i made a new one i made it as close as possible to the one i had

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.

1. instructions: in your response, make an argument for whether for whether it is better for waketown to build its new wake heights subdivision or to preserve the wake wetlan to preserve the wake wetland preserve. use evidence from at least two of the sources below to support your claim. be sure to introduce your precise claim, develop the claim with evidence from the sources, and demonstrate relationships between ideas. (15 points)

Ineed ! i need a computer whiz to me complete my study guide on computers, it's 50 questions. if anyone can me i'll be greatly appreciated.