Determine the mass moment of inertia of the thin plate about an axis perpendicular to the page and passing through point o. the material has a mass per unit area of 21 kg/m2 .

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