Q1. Speedboat A negotiates a curve whose radius is 124m. Speedboat B negotiates a curve whose radius is 230m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats?
Q2. Identical 1.80 mC charges are fixed to adjacent corners of a square. What charge should be fixed to one of the empty corners, so that total electric potential at the remaining empty corner is 0 Volts?