A spherical capacitor, constructed of two concentric conducting spheres, is filled with an insulating material with a relative permittivity, εr, equal to 4. The inner sphere is held at a potential of 0 volts, and the outer sphere is held at a potential of V0 volts. The inner sphere has a radius of ‘a’, and the outer sphere, a radius of ‘b’. Show your work for full credit.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10