Assume a device is designed to obtain a large potential difference by first charging a bank of capacitors connected in parallel and then activating a switch arrangement that in effect disconnects the capacitors from the charging source and from each other and reconnects them all in a series arrangement. The group of charged capacitors is then discharged in series. What is the maximum potential difference that can be obtained in this manner by using ten 500-mF capacitors and an 800-V charging source? (a) 500 V (b) 8.00 kV (c) 400 kV (d) 800 V (e) 0

All of the rotational motion equations are essentially the linear motion equations but with angular quantities. I.e use theta in place of x, angular velocity in place of v, alpha in place of a An object will change directions if ang. acceleration (rad/s^2) and angular velocity (rad/s) For a rotating disk w/ constant ang velocity, tangential acceleration = 0, radial acceleration cannot be 0 Tan acceleration = r * ang. Acceleration Rad acceleration = ang velocity^2 * r Pulley problems: Angular velocity is larger for smaller radius if 2 pulleys move with same ang velocity Moment of inertia depends on m and r^2. Needs to be calculated by axis For pulleys: rad acceleration is larger for larger disc if 2 move at same ang velocity Torque is the angular equivalent of force (torque =