Aparticle of unit mass moves in a potential v(x)= ax^2+b/x^2 . where a and b are constnts. calcuate the angular frequency of small oscillations about the minimum of potential.

Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.

Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form