3. A dog walks 12 meters to the east and then 16 meters back to the west. For this motion, what is the distance moved?
What is the magnitude and direction of the displacemeni?

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to