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.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?